List of the Cenozoic life of California GudangMovies21 Rebahinxxi LK21

      This list of the Cenozoic life of California contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of California and are between 66 million and 10,000 years of age.


      A



      †Abantis
      †Abantis velifer
      Abies
      †Abies concoloroides
      †Abies klamathensis
      †Aboma
      †Aboma antiqua – type locality for species
      †Acalypha
      †Acalypha aequalis
      Acanthina
      †Acanthina spirata
      Acanthocardia
      †Acanthocardia brewerii – type locality for species
      †Acanthocardia sorrentoense
      Acar
      †Acar bailyi – or unidentified comparable form
      Accipiter
      †Accipiter velox
      Acentrophryne
      †Acentrophryne longidens
      Acer
      †Acer aequidentatum
      †Acer scottiae
      Acesta
      †Acesta multiradiata
      †Achaenodon
      †Achaenodon robustus – or unidentified comparable form
      Acila
      †Acila castrensis
      †Acila conradi
      †Acila decisa
      †Acila gabbiana
      †Acila muta
      †Acila semirostrata – or unidentified comparable form
      †Acila shumardi
      Acipenser
      †Acipenser medirostris – or unidentified comparable form
      Acmaea
      †Acmaea dickersoni – or unidentified related form
      †Acmaea digitalis – or unidentified comparable form
      †Acmaea insessa
      †Acmaea limatula
      †Acmaea mitra
      †Acmaea persona
      †Acmaea ruckmani – or unidentified comparable form
      †Acmaea tejonensis – or unidentified comparable form
      †Acritohippus
      †Acritohippus isonesus – or unidentified comparable form
      †Acritohippus quinni – type locality for species
      †Acritohippus stylodontus
      †Acritohippus tertius – or unidentified comparable form
      †Acritoparamys – or unidentified comparable form
      Acteocina
      †Acteocina culcitella
      †Acteocina inculta
      †Acteocina magdalensis
      Acteon
      †Acteon boulderanus
      †Acteon lawsoni
      †Acteon punctocaelatus
      †Acteon traski
      Actinemys
      †Actinemys marmorata
      †Acutostrea
      †Acutostrea idriaensis
      †Acutostrea miguelensis
      Admete
      †Admete rhyssa
      Adula
      †Adula californiensis
      †Adula diegensis
      Aechmophorus
      †Aechmophorus elasson
      †Aechmophorus occidentalis
      †Aechomophorus
      †Aechomophorus occidentalis
      †Aeila
      †Aeila decisa
      †Aelurodon
      †Aelurodon asthenostylus
      †Aelurodon taxoides
      †Aepycamelus
      †Aepycamelus alexandrae
      Aequipecten
      †Aequipecten andersoni
      Aesopus
      †Aesopus chrysalloides
      Aethia
      †Aethia barnesi – type locality for species
      †Aethia rossmoori – type locality for species
      †Aethomylos
      †Aethomylos simplicidens
      Agaronia
      †Agaronia mathewsoni – or unidentified comparable form
      †Agaronia mathewsonii – or unidentified comparable form
      †Agasoma
      †Agasoma acuminatum
      †Agasoma gravida
      †Agasoma gravidum
      †Agasoma kerrianum
      †Agasoma sinuata
      Agelaius
      †Agelaius phoeniceuus
      †Agriotherium
      †Ailanthus
      †Ailanthus lesquereuxi
      Akera
      †Akera maga
      Alaba
      †Alaba catalinensis
      †Alaba jeannettae
      Alabina
      †Alabina io – or unidentified comparable form
      †Alabina tenuisculpta
      †Albicetus
      †Albicetus oxymycterus – type locality for species
      †Albireo
      †Albireo savagei – type locality for species
      Alca
      †Alcodes
      †Alcodes ulnulus – type locality for species
      Aleochara
      Aletes
      †Aletes squamigerus
      †Aletomeryx
      †Aletomeryx occidentalis – type locality for species
      †Alforjas
      Aligena
      †Aligena cerritensis
      †Alilepus
      †Alilepus hibbardi
      †Alisea – type locality for genus
      †Alisea grandis – type locality for species
      †Allodelphis – type locality for genus
      †Allodelphis pratti – type locality for species
      †Allodelphis woodburnei – type locality for species
      †Allodesmus
      †Allodesmus gracilis – type locality for species
      †Allodesmus kelloggi – type locality for species
      †Allodesmus kernensis
      †Alluvisorex
      †Alluvisorex chasseae – type locality for species
      Alnus
      †Alnus corrallina
      †Alnus operia
      †Alopecocyon – type locality for genus
      †Alopecocyon leardi – type locality for species
      Alopias
      †Alopias exigua – or unidentified comparable form
      †Alopias latidens
      †Alopias vulpinus – or unidentified comparable form
      Alvania
      †Alvania acutelirata
      †Alvania compacta
      †Alvania iliuliukensis – or unidentified related form
      †Alveojunctus
      †Alveojunctus bowni – type locality for species
      Amaea
      Amara
      †Amara insignis
      †Amaurellina
      †Amaurellina caleocia
      †Amaurellina martinezensis
      †Amaurellina moragai
      Amauropsis
      †Amauropsis alveata
      Amelanchier
      Amiantis
      †Amiantis – type locality for species informal
      †Amiantis callosa
      †Amiantis diabloensis
      †Amiantis mathewsoni
      Ammobaculites
      †Ammobaculites cubensis
      †Ammobaculites strathearnensis – type locality for species
      Ammospermophilus
      †Ammospermophilus fossilis
      †Amorpha
      †Amorpha condonii
      †Amorpha oklahomensis
      †Amphicyon
      †Amphicyon ingens
      †Amphimachairodus
      †Amphimachairodus coloradensis – or unidentified comparable form
      Amphimorphina
      †Amphimorphina ignota
      Amphissa
      †Amphissa columbiana
      †Amphissa reticulata
      †Amphissa ventricosa
      †Amphissa versicolor
      Amphiura
      †Amphiura santaecrucis
      †Amphora
      †Amphora ovalis
      †Amphora perpusilla
      †Ampullina
      †Ampullina schencki – or unidentified comparable form
      Amusium
      †Amusium lompocensis
      †Amussiopecten
      †Amussiopecten vanvlecki
      †Amynodon
      †Amynodon advenus – or unidentified comparable form
      †Amynodon reedi
      †Amynodontopsis
      †Amynodontopsis bodei – type locality for species
      Anachis
      †Anachis coronata
      Anadara
      †Anadara devincta
      †Anadara obispoana
      †Anadara osmonti
      †Anadara perlabiata
      †Anadara reinharti
      †Anadara rivulata
      †Anadara santana – type locality for species
      †Anadara submontereyana
      †Anadara trilineata
      Anaphothrips
      †Anaphothrips vitreus – type locality for species
      Anas
      †Anas americana
      †Anas carolinense
      †Anas clypeata
      †Anas platyrhynchos
      †Anchitheriomys – or unidentified comparable form
      †Anchitherium
      †Anchitherium clarencei
      †Anchura
      †Anchura baptos
      Ancilla
      †Ancilla fishii
      †Ancilla gabbi – tentative report
      †Angelosquilla
      †Angelosquilla altamirensis
      Angulogerina
      Angulus
      †Angulus buttoni
      †Angulus castacana
      †Angulus joaquinensis
      †Angulus jollaensis – or unidentified comparable form
      †Angulus longa
      †Angulus lutea – or unidentified comparable form
      Anniella
      Anodontia
      †Anodontia edentuloides
      †Anodontia inflata
      †Anomalina
      †Anomalina californiensis
      †Anomalina garzaensis
      Anomalinoides
      †Anomalinoides globosa – or unidentified comparable form
      Anomia
      †Anomia mcgoniglensis
      †Anomia peruviana
      †Anomia vaquerosensis – type locality for species
      †Ansen
      †Ansen albifrons
      Anser
      †Anser albifrons
      †Antecalomys
      †Antecalomys valensis
      †Antecalomys vasquezi
      †Antiacodon
      †Antiacodon venustus
      Antigona
      †Antigona undosa
      †Antilla
      †Antilla batequensis
      Antilocapra
      Antrozous
      †Antrozous pallidus
      †Anzanycteris
      †Anzanycteris anzensis
      †Apataelurus – or unidentified comparable form
      †Apatemys
      †Apatemys bellus
      †Apatemys downsi – type locality for species
      †Apatemys uintensis
      Aphelocoma
      †Aphelocoma californica
      †Aphelophlebodes – type locality for genus
      †Aphelophlebodes stocki – type locality for species
      †Aphelops
      †Aphelops megalodus
      Apiotoma
      †Apiotoma californiana
      Aplodontia
      †Aplodontia rufa
      Aprionodon
      Apsena
      †Apsena laticornis – type locality for species
      †Apsena pubescens
      †Apsena rufipes
      Aquila
      Aquila chrysaetos
      †Araeosteus
      †Araeosteus rothi
      Arbutus
      †Arbutus matthesii
      Arca
      †Arca hornii – type locality for species
      †Arca montereyana
      †Arca pacifica – or unidentified comparable form
      †Arca santaclarana
      †Arca sisquocensis
      †Arca terminumbonis
      †Arceuthobium
      †Archaeocyon
      †Archaeocyon pavidus
      †Archaeohippus
      †Archaeohippus mourningi
      †Archaeohippus ultimus
      †Archaeolagus
      †Archaeolagus acaricolus – type locality for species
      †Archaeolithothamnion
      †Archaeolithothamnion keenanii – or unidentified related form
      Archaeolithothamnium
      †Archaeolithothamnium keenani – type locality for species
      †Archaeoparadoxia
      †Archaeoparadoxia weltoni – type locality for species
      †Archibuteo
      †Archibuteo ferrugineus
      Architectonica
      †Architectonica cognata
      †Architectonica llajasensis – type locality for species
      †Architectonica nobilis
      †Architectonica tuberculata
      †Architectonica ullreyana – or unidentified comparable form
      †Archoheia – tentative report
      Archoplites
      †Archoplites interruptus
      Arcinella
      †Arcinella californica
      Arctica – tentative report
      †Arctica weaveri
      Arctocephalus
      †Arctodus
      †Arctodus simus – type locality for species
      †Arctostaphylos
      Ardea
      †Ardea herodias
      Arenaria
      †Arenaria melanocephala
      Arene
      †Arene mcleani – type locality for species
      †Argenna
      †Argenna fossilis – type locality for species
      Argobuccinum
      †Argobuccinum katherineae – type locality for species
      †Argobuccinum oregonensis
      Argopecten
      †Argopecten deserti
      †Argopecten gibbus
      †Argopecten mendenhalli
      †Argopecten purpuratus
      †Argopecten ventricosus
      †Argyrocetus – type locality for genus
      †Argyrocetus bakersfieldensis – type locality for species
      †Argyrocetus joaquinensis – type locality for species
      Argyropelecus
      †Argyropelecus bullocki – type locality for species
      †Argyropelecus bullockii
      †Arnoldina – type locality for genus
      †Arnoldina iniistia – type locality for species
      Arossia
      †Artocarpus
      †Artocarpus lessigiana
      †Asclepiadites
      †Asclepiadites laterita – type locality for species
      Asio
      †Asio priscus
      †Asio wilsonianus
      Asterigerina
      †Asterigerina crassaformis
      Astraea
      †Astraea biangulata – or unidentified comparable form
      †Astraea gibbosa
      †Astraea gradata
      †Astraea morani – type locality for species
      †Astraea undosa
      Astrangia
      †Astrangia grandis – type locality for species
      †Astrangia insignifica – type locality for species
      †Astrocoenia – tentative report
      †Astrocoenta
      †Astrodapsis
      †Astrodapsis arnoldi – or unidentified comparable form
      †Astrodapsis cuyamanus
      †Astrodapsis fernandoensis
      †Astrodapsis merriami – tentative report
      †Astrodapsis spatiosus
      †Astrodaspis
      †Astrodaspis arnoldi
      Astropecten
      Astyris
      †Astyris gausapata
      Athene
      †Athene cunicularia
      Athleta
      †Athleta roddai – type locality for species
      †Atocetus
      †Atocetus nasalis – type locality for species
      †Atopotarus – type locality for genus
      †Atopotarus courseni – type locality for species
      Atrina
      †Atrina alamedensis
      †Aturia
      †Aturia angustata
      †Aturia dickersoni – type locality for species
      †Aturia kerniana – type locality for species
      †Aturia myrlae – type locality for species
      †Aturoidea
      †Aturoidea mathewsonii – type locality for species
      Atys
      †Aulophyseter – type locality for genus
      †Aulophyseter morricei – type locality for species
      Austrotrophon
      †Auxides
      †Auxides sanctaemonicae
      †Avipeda
      Aythya
      †Aythya affinis
      †Aythya valisineria
      †Azalois – type locality for genus
      †Azalois angelensis – type locality for species


      B



      Baiomys
      †Baiomys mowi
      Balaenoptera
      †Balaenoptera bertae – type locality for species
      †Balaenoptera cortesi
      †Balaenoptera davidsonii – type locality for species
      †Balaenoptera physalus
      †Balaenoptera ryani
      †Balaenula
      Balanophyllia
      †Balanophyllia elegans
      †Balanophyllia variabilis – type locality for species
      Balanus
      †Balanus crenatus
      †Balanus gregarius
      †Balanus nubilus – or unidentified comparable form
      †Balanus rostratus
      Balcis
      †Balcis micans
      †Balcis monicensis
      †Balcis oldroydi
      †Balcis rutila
      †Balcis thersites
      Bankia
      †Bankia setacea – or unidentified comparable form
      Barbarofusus
      †Barbarofusus barbarensis
      Barbatia
      †Barbatia cliffensis
      †Barbatia landesi – or unidentified related form
      †Barbatia strongi – type locality for species
      †Barbatia suzzalloi – or unidentified comparable form
      †Barbourofelis
      †Barbourofelis loveorum
      †Barbourofelis whitfordi
      Barleeia
      †Barleeia marmorea
      Barnea
      †Barnea costata
      †Basirepomys
      †Basirepomys pliocenicus – type locality for species
      Bassariscus
      †Bassariscus antiquus
      †Bassariscus astutus – or unidentified comparable form
      †Bassariscus casei
      †Bassariscus raptor
      †Bathylagus – type locality for genus
      †Bathylagus quiescens – type locality for species
      †Bathylagus quisquilia – type locality for species
      †Bathysiphon
      †Bathysiphon eocenica
      †Bathysiphon sanctaecrucis
      Bathytoma
      †Bathytoma pacifica
      †Batodonoides
      †Batodonoides powayensis
      †Batodonoides walshi – type locality for species
      Bembidion
      †Bembidion davidae – type locality for species
      †Bembidion everestae – type locality for species
      †Benoistia
      †Benoistia cantonensis
      †Bensonomys
      †Bensonomys arizonae
      †Bensonomys gidleyi
      †Bensonomys meadensis
      Beringraja
      †Beringraja binoculata – or unidentified comparable form
      †Bestiopeda
      Betula
      †Betula ashleyii
      †Bifarina
      †Bifarina eleganta
      Bison
      †Bison antiquus
      †Bison latifrons
      Bittium
      †Bittium alternatum – or unidentified comparable form
      †Bittium asperum
      †Bittium casmaliense
      †Bittium catalinense
      †Bittium dumblei
      †Bittium eschrichti
      †Bittium eschrichtii
      †Bittium inerfossa
      †Bittium interfossa
      †Bittium latum
      †Bittium ornatissimum
      †Bittium rugatum
      †Bittium topangensis
      Bivetopsia
      †Bivetopsia bullata
      †Boavus
      †Boavus affinis – type locality for species
      Boetica
      †Boetica hertleini
      †Bolbocara
      †Bolbocara gyrinus
      Bolinichthys
      Bolivina
      †Bolivina gracilis
      Bonasa
      †Bonasa umbellus
      †Bonellitia
      †Bonellitia paucivaricata
      †Bonellitia stantoni
      Bornia
      †Bornia retifera
      †Borophagus
      †Borophagus diversidens
      †Borophagus littoralis – type locality for species
      †Borophagus parvus
      †Borophagus secundus
      †Borophryne
      †Borophryne apogon
      †Bouromeryx
      †Bouromeryx americanus
      †Bouromeryx submilleri – or unidentified comparable form
      Brachidontes
      †Brachidontes cowlitzensis
      †Brachidontes dichotomus
      †Brachidontes lawsoni – or unidentified comparable form
      †Brachidontes ornatus
      Brachiodontes
      †Brachiodontes lawsoni
      †Brachisphingus
      †Brachisphingus gabbi
      †Brachyallodesmus – type locality for genus
      †Brachyallodesmus packardi
      †Brachycrus
      †Brachycrus buwaldi
      †Brachycrus laticeps
      †Brachyerix
      †Brachyerix incertis
      †Brachypsalis
      †Brachypsalis obliquidens
      †Brachypsalis pachycephalus – or unidentified comparable form
      Brachyramphus
      †Brachyramphus dunkeli – type locality for species
      †Brachyramphus pliocenum – type locality for species
      †Brachysphingus
      †Brachysphingus liratus
      †Brachysphingus mammilatus – type locality for species
      †Brachysphingus sinuatus
      Branta
      †Branta canadensis
      †Branta nigricans – tentative report
      †Branta woolfendeni – or unidentified comparable form
      †Bretzia
      †Brevirostrodelphis – Type locality for genus
      †Brevirostrodelphis dividum - Type locality for species (synonym Delphinodon dividum)
      †Brochopleurus – tentative report
      †Bruclarkia
      †Bruclarkia barkerianum
      †Bruclarkia barkerium
      †Bruclarkia columbiana
      †Bruclarkia gravida
      †Bruclarkia oregonensis – or unidentified comparable form
      †Bruclarkia santacruzana
      †Bruclarkia seattlensis
      Bubo
      †Bubo sinclairi – type locality for species
      †Bubo virginianus
      Buccinum
      †Buccinum strigillatum
      Bucephala
      †Bucephala albeola
      †Bucida
      †Bucida eocenica
      Bufo
      †Bulbiceps
      †Bulbiceps raninus
      †Bulbifusus
      †Bulbifusus californicus – type locality for species
      Bulimina
      †Bulimina chirana
      †Bulimina debilis
      †Bulimina jacksonensis
      †Bulimina ovata
      †Bulimina ovula
      †Bulimina rinconensis
      †Bulimina socialis – or unidentified comparable form
      Buliminella
      †Buliminella curta
      †Buliminella subfusiformis
      Bulla
      †Bulla clarki
      †Bulla gouldiana
      †Bulla punctulata – or unidentified comparable form
      †Bulla punctulatus
      †Bulla striata
      Bullia
      †Bullia clarki
      †Bullinula
      †Bullinula subglobosa
      †Bumelia
      †Bumelia florissanti
      Bursa
      †Bursa califomica
      Buteo
      †Buteo borealis
      †Buteo jamaicensis
      †Buteo swainsoni


      C



      Cadulus
      †Cadulus fusiformis
      Caecum
      †Caecum californicum
      Calicantharus
      †Calicantharus dalli
      †Calicantharus fortis
      †Calicantharus humerosus
      †Calicantharus portolaensis – or unidentified comparable form
      †Calicovatellus – type locality for genus
      †Calicovatellus petrodytes – type locality for species
      Calidris
      †Calidris alba
      Californiconus
      †Californiconus californicus
      †Calilampas
      †Calilampas californiensis
      †Calipepla
      †Calipepla californica
      Calliostoma
      †Calliostoma annulata
      †Calliostoma annulatum
      †Calliostoma augustinensis
      †Calliostoma canaliculatum
      †Calliostoma costatum
      †Calliostoma crassicostatus
      †Calliostoma doliarium
      †Calliostoma doliarum – tentative report
      †Calliostoma gemmulatum
      †Calliostoma ligatum
      †Calliostoma nuttalli
      †Calliostoma supragranosum
      †Calliostoma tricolor
      Callista
      †Callista domenginica
      †Callista vokesi
      Callistochiton
      †Callistochiton palmulatus
      Callithaca
      †Callithaca tenerrima
      Callorhinus
      †Callorhinus gilmorei – type locality for species
      †Callorhinus ursinus
      Calopsectra
      †Calorebama
      †Calorebama inornata
      †Calorhadia – tentative report
      Calosoma
      †Calosoma semilaeve
      †Calycites
      †Calycites mikanoides
      Calyptraea
      †Calyptraea calabasasensis
      †Calyptraea contorta
      †Calyptraea costellata
      †Calyptraea dalliana
      †Calyptraea diegoana
      †Calyptraea excentrica
      †Calyptraea fastigiata
      †Calyptraea filosa
      †Calyptraea inornata
      †Calyptraea mamillaris
      †Calyptraea mammilaris – or unidentified comparable form
      †Calyptranthes
      †Calyptranthes myrtifolia – type locality for species
      †Camelops
      †Camelops hesternus
      †Camelops minidokae
      †Cammackacetus – Type locality for genus
      †Cammackacetus hazenorum - Type locality for species
      Campanile
      †Campanile dilloni
      Camponotus – type locality for genus
      †Camponotus festinatus – type locality for species
      †Canarium
      †Canarium californicum
      Cancellaria
      †Cancellaria arnoldi
      †Cancellaria dalliana
      †Cancellaria fernandoensis
      †Cancellaria obesa
      †Cancellaria planospira
      †Cancellaria posunculensis
      †Cancellaria subtuberosa
      †Cancellaria tritonidea
      Cancer
      Cancris
      †Cancris mexicanus
      Canis
      †Canis dirus
      †Canis edwardii
      †Canis latrans
      †Canis lepophagus
      †Canis lupus
      †Canis rufus
      Canthon
      †Canthon praticola
      †Canthon simplex
      †Cantius
      †Cantius actius
      †Capricamelus – type locality for genus
      †Capricamelus gettyi – type locality for species
      †Capromeryx
      †Capromeryx minor
      Caracara
      †Caracara cheriway
      †Caracara plancus
      Carcharhinus
      Carcharias
      †Carcharias clavatus
      †Carcharinus
      Carcharodon
      †Carcharodon arnoldi
      †Carcharodon carcharias
      †Carcharodon hastalis
      †Carcharodon leviathan
      †Carcharodon morricei
      †Carcharodon sulcidens
      †Carcharodon tembloris – type locality for species
      Cardium
      †Cardium brewerii, alternative of Acanthocardia brewerii (see List of the Cenozoic life of California § A)
      Carpelimus
      †Carpites
      †Carpites egregia
      †Carpocyon
      †Carpocyon robustus
      Carya
      †Carya bendirei
      †Carya sessilis
      Caryophyllia
      †Caryophyllia arnoldi
      †Caryophyllia californica – type locality for species
      †Caryophyllia capayensis – type locality for species
      †Caryophyllia pedroensis – type locality for species
      Cassidulina
      †Cassidulina crassipunctata
      †Cassidulina diversa – or unidentified comparable form
      †Cassidulina globosa
      Castanea
      †Castanea spokanensis
      Castanopsis
      †Castanopsis longipetiolatum
      Castor
      †Castor californicus – or unidentified comparable form
      †Catharista
      †Catharista shastensis – type locality for species
      Cathartes
      †Cathartes aura
      Catoptrophorus
      †Catoptrophorus semipalmatus
      †Catoptrophus
      †Catoptrophus inornatus
      †Catostomus
      †Catostomus occidentalis
      Ceanothus
      †Ceanothus tuolumnensis
      †Ceanothus turlockensis
      Cedrela
      †Cedrela eolancifolia – type locality for species
      †Cedrela trainii
      †Celastrus
      †Celastrus preangulata – type locality for species
      Celtis
      †Celtis kansana
      †Centetodon
      †Centetodon aztecus
      †Centetodon bembicophagus – or unidentified comparable form
      †Centetodon magnus – or unidentified comparable form
      Centrifuga
      †Centrifuga leeana
      Cepphus
      †Cepphus columba
      †Cepphus olsoni – type locality for species
      Cercidiphyllum
      †Cercidiphyllum elongatum
      †Cercocarpus
      †Cercocarpus nevadensis
      Cerithidea
      †Cerithidea californica
      Cerithiopsis
      †Cerithiopsis antefilosa
      †Cerithiopsis carpenteri
      †Cerithiopsis columna – or unidentified comparable form
      †Cerithiopsis cosmia
      †Cerithiopsis halia – or unidentified related form
      †Cerithiopsis paramoea
      †Cerithiopsis pedroana
      †Cerithiopsis rowelli
      †Cerithiopsis stejnegeri – or unidentified comparable form
      Cerithium
      †Cerithium incisum
      †Cerithium topangensis
      †Cernictis
      †Cernictis hesperus – type locality for species
      †Cernina
      †Cernina hannibali
      †Cerorhinca
      †Cerorhinca dubia – type locality for species
      †Cerorhinca reai – type locality for species
      Cervus
      †Cervus elaphus
      Cetorhinus
      †Cetorhinus maximus
      †Cetotherium
      †Cetotherium furlongi – type locality for species
      †Chaceia
      †Chaceia fulcherae – type locality for species
      †Chaenophryne
      †Chaenophryne melanorhabdus
      Chaetodipus
      †Chaetodipus formosus – or unidentified comparable form
      †Chaetoptelea
      †Chaetoptelea pseudofulva
      †Chalcidichthys – type locality for genus
      †Chalcidichthys malacopterygius – type locality for species
      Chama
      †Chama arcana
      †Chama frondosa
      †Chama grunski
      †Chamaecyparis
      †Chamaecyparis cordillerae
      Charadrius
      †Charadrius semipalmatus
      Chauliodus – type locality for genus
      †Chauliodus eximias
      †Chauliodus eximius – type locality for species
      †Chedevillia
      †Chedevillia saltonensis – type locality for species
      †Chedevillia stewarti – type locality for species
      Chelonia
      †Chelonia californiensis – type locality for species
      Chen
      †Chen caerulescens
      †Chendytes – type locality for genus
      †Chendytes lawi – type locality for species
      Chilostomella
      †Chilostomella hadleyi
      †Chilostomelloides
      †Chilostomelloides ovicula
      †Chilostomelloides oviformis
      Chione
      †Chione californiensis
      †Chione cryptolineata – or unidentified comparable form
      †Chione latilaminosa
      †Chione lineolata – or unidentified comparable form
      †Chione panzana
      †Chione schencki
      †Chione securis
      †Chione undatella
      Chionista
      †Chionista fluctifraga
      Chionopsis
      †Chionopsis gnidia
      †Chionopsis richthofeni
      †Chionopsis temblorensis
      Chlamys
      †Chlamys bartschi
      †Chlamys branneri – or unidentified comparable form
      †Chlamys corteziana – or unidentified comparable form
      †Chlamys hastata
      †Chlamys hertleini
      †Chlamys mediacostatus – type locality for species
      †Chlamys rubida
      †Chlamys sespeensis
      †Chlamys swifti
      Chlorostoma
      †Chlorostoma gallina
      †Chorizanthe
      †Chrisodomus
      †Chrysobalanus
      †Chrysobalanus eoicaco
      †Chrysocyon
      †Chrysocyon nearcticus
      †Chrysodomus – report made of unidentified related form or using admittedly obsolete nomenclature
      †Chrysodomus martini
      †Chrysolepis
      †Chrysolepis sonomensis
      †Chumashius
      †Chumashius balchi – type locality for species
      Cibicides
      †Cibicides cushmani
      †Cibicides martinezensis
      †Cibicides pseudoungerianus
      Cibicidoides
      †Cibicidoides midwayensis – or unidentified comparable form
      Cicindela
      †Cicindela haemorrhagica
      †Cicindela oregona
      Cidaris
      †Cidaris martinezensis
      Cinnamomum
      †Cinnamomum acrodromum
      †Cinnamomum dilleri
      Cissus
      †Cissus pyriformis
      †Citellus
      †Citellus bensoni
      Citharichthys
      †Citharichthys stigmaeus
      †Claibornites
      †Claibornites diegoensis
      †Claibornites muirensis
      †Claibornites turneri
      Clathrodrillia
      †Clathrodrillia coalingensis
      Clathurella
      †Clathurella conradiana
      Clavilithes
      †Clavilithes tabulatus
      Clavus
      †Clavus hartleyensis – type locality for species
      †Clavus hemphilli
      †Clavus pallidus – or unidentified related form
      †Clavus temblorensis
      Clementia
      †Clementia brioniana
      †Clementia conradiana
      †Clementia pertenius
      †Clementia pertenuis
      Clethrionomys
      Cletocamptus
      Clinocardium
      †Clinocardium meekianum
      †Clinocardium nuttallii
      Cliona
      Clupea
      †Clupea hadleyi – type locality for species
      †Clupea tiejei – type locality for species
      Clypeaster
      †Clypeaster bowersi
      †Clypeaster carrizoensis – type locality for species
      †Clypeaster deserti
      Cnemidophorus
      †Coalingodea
      †Coalingodea tuberculiformis
      Coccodentalium
      †Coccodentalium emersoni – type locality for species
      †Cocconeis
      †Cocconeis disculus
      †Cocconeis placentula
      †Cochlespiropsis – tentative report
      †Cochlespiropsis jenkinsi – type locality for species
      Cochliomyia – type locality for genus
      †Cochliomyia macellaria – type locality for species
      Codakia
      †Codakia colpoica
      †Codakia distinguenda
      Colaptes
      †Colaptes cafer
      †Colodon
      Coluber
      †Coluber constrictor
      Colubraria
      Columba – or unidentified comparable form
      †Columba fasciata
      Columbarium
      Colymbus
      †Colymbus nigricollis
      †Colymbus parvus
      †Colymbus subparvus – type locality for species
      Compsomyax
      †Compsomyax subdiaphana
      †Conasprelloides
      †Conasprelloides planiliratus
      Concavus
      †Concavus concavus
      †Conchocele
      †Conchocele bisecta
      Coniontis
      †Coniontis abdominalis – type locality for species
      †Coniontis elliptica
      †Coniontis lamentabilis
      †Coniontis puncticollis
      †Coniontis remnans – type locality for species
      †Coniontis robusta
      †Coniontis rugosa
      Conus
      †Conus caleocius
      †Conus fergusoni
      †Conus hornii
      †Conus owenana
      †Conus owenianus
      †Conus redmondii – or unidentified comparable form
      †Conus regularis
      †Conus remondii
      †Conus scalaris
      Cooperella
      †Cooperella subdiaphana
      †Copemys
      †Copemys barstowensis – type locality for species
      †Copemys esmeraldensis
      †Copemys longidens – type locality for species
      †Copemys pagei
      †Copemys russelli
      †Copemys tenuis – type locality for species
      †Cophocara
      †Cophocara stantoni
      †Cophocetus – tentative report
      Copris
      †Copris pristinus – type locality for species
      Coragyps
      Coralliophaga
      Corbicula
      †Corbicula dumblei
      Corbula
      †Corbula diaboli – type locality for species
      †Corbula dickersoni
      †Corbula dilatata
      †Corbula fragilis
      †Corbula hornii – or unidentified comparable form
      †Corbula parilis
      †Corbula tomulata – or unidentified comparable form
      †Cormohipparion
      †Cormohipparion occidentale – or unidentified comparable form
      Cornus
      †Cornus kelloggii
      †Cornus ovalis – or unidentified comparable form
      †Coronadus – type locality for genus
      †Coronadus agilis – type locality for species
      Coronula – tentative report
      Corvus
      †Corvus brachyrhynchos
      †Corvus corax
      †Cosomys
      †Cosomys primus – type locality for species
      †Cosoryx
      †Cosoryx cerroensis – or unidentified comparable form
      Costacallista
      †Costacallista hornii – or unidentified comparable form
      †Cranioceras
      †Cranioceras teres
      †Cranioceras unicornis – or unidentified comparable form
      †Craseops
      †Craseops sylvestris – type locality for species
      Crassadoma
      †Crassadoma gigantea
      Crassatella
      †Crassatella – type locality for species A informal
      †Crassatella claytonensis
      †Crassatella compacta
      †Crassatella granti
      †Crassatella meganosensis – type locality for species
      †Crassatella unioides
      †Crassatella uvasana
      †Crassatella washingtonensis
      Crassinella
      †Crassinella nuculiformis
      †Crassinella pacifica
      Crassispira
      †Crassispira montereyensis – or unidentified related form
      †Crassispira zizyphus
      Crassostrea
      †Crassostrea ashleyi
      †Crassostrea titan
      †Crassostrea vaquerosensis
      Crataegus
      †Crataegus pacifica
      Crawfordina
      †Crawfordina weaveri
      †Crenaturricula
      †Crenaturricula crenatospira
      Crepidula
      †Crepidula adunca
      †Crepidula coei – or unidentified comparable form
      †Crepidula diminutiva – type locality for species
      †Crepidula excavata
      †Crepidula lessoni
      †Crepidula nummaria
      †Crepidula nunimaria
      †Crepidula onyx
      †Crepidula pileum – or unidentified comparable form
      †Crepidula praerupta
      †Crepidula princeps
      †Crepidula ungana – or unidentified comparable form
      Crepipatella
      †Crepipatella lingulata
      †Crommium
      †Crommium andersoni
      †Crommium pinyonensis
      Crossata
      †Crossata ventricosa
      Crotalus
      †Crotalus viridis
      Crucibulum
      †Crucibulum spinosum
      †Crypholestes
      †Crypholestes vaughni
      †Cryptocarya
      †Cryptocarya praesamarensis
      †Cryptoconus
      †Cryptoconus cooperi
      Cryptomya
      †Cryptomya californica
      Cryptonatica
      †Cryptonatica affinis
      †Cryptonatica aleutica
      Cryptotermes
      †Cryptotermes ryshkoffi – type locality for species
      Cryptotis
      Ctenocardia
      †Ctenocardia biangulata
      Cucullaea
      †Cucullaea mathewsoni
      †Cucullaea mathewsonii
      Culicoides
      †Culicoides carri – type locality for species
      †Culicoides fossilis – type locality for species
      †Culicoides laurae – type locality for species
      †Culicoides megacanthus – type locality for species
      †Culicoides mioceneus – type locality for species
      Cumingia
      †Cumingia lamellosa
      †Cunnolites – tentative report
      †Cupania
      †Cupania oregona
      †Cupidinimus
      †Cupidinimus avawatzensis
      †Cupidinimus bidahochiensis – or unidentified comparable form
      †Cupidinimus boronensis – type locality for species
      †Cupidinimus halli
      †Cupidinimus lindsayi – type locality for species
      †Cupidinimus tertius
      †Cupressus
      †Cupressus goveniana
      †Cupressus mokelumnensis
      Cuspidaria
      †Cuspidaria hannibali
      †Cuyamacamelus
      †Cuyamacamelus jamesi
      †Cuyamalagus
      †Cuyamalagus dawsoni – type locality for species
      Cyanocitta
      †Cyanocitta stelleri
      Cybocephalus
      †Cybocephalus californicus – or unidentified comparable form
      Cyclammina
      †Cyclammina clarki
      †Cyclammina incisa – or unidentified comparable form
      Cyclinella
      Cyclocardia
      †Cyclocardia californica
      †Cyclocardia montereyana – type locality for species
      †Cyclocardia ventricosa
      †Cyclocorystes
      †Cyclocorystes aldersoni – type locality for species
      †Cyclosthone – or unidentified comparable form
      Cyclothone
      Cygnus
      †Cygnus columbianus
      Cylichna
      †Cylichna attonsa
      Cylichnella
      †Cylichnella attonsa
      †Cylichnella culcitella
      Cymatium
      †Cymatium elsemerense
      †Cymatium janetae – type locality for species
      Cymatogaster
      †Cymatogaster aggregata
      †Cymbophora
      †Cynarctoides
      †Cynarctoides acridens
      †Cynarctoides whistleri – type locality for species
      †Cynarctus
      †Cynarctus galushai – type locality for species
      †Cynelos
      †Cynelos malasi – type locality for species
      †Cynelos sinapius – or unidentified comparable form
      †Cynorca
      †Cynorca occidentale
      Cynoscion
      †Cynoscion eprepes
      Cyperus
      Cypraea
      Cyrena
      †Cyrena dumblei
      †Cyrena studleyi – or unidentified comparable form
      Cyrtonyx
      †Cyrtonyx tedfordi – type locality for species
      Cystiscus
      †Cystiscus subtrigona
      Cythara
      †Cythara cetolaca
      †Cythara hecetae
      †Cythara interlirata
      Cytherea
      †Cytherea mathewsoni


      D



      †Dalbergia
      †Dalbergia rubra – type locality for species
      Dallocardia
      †Dallocardia quadragenarium
      Damalichthys
      †Damalichthys vacca
      †Daphoenodon – or unidentified comparable form
      †Daphoenus
      †Daphoenus ruber – type locality for species
      †Darbyella
      Dardanus
      †Dardanus arrosor
      †Dasceles – type locality for genus
      †Dasceles dassurus – type locality for species
      Dasyatis
      †Dasyatis dipterus
      Dasyhelea
      †Dasyhelea antiqua
      †Dasyhelea browneae – type locality for species
      †Dasyhelea dara – type locality for species
      †Dasyhelea judithae – type locality for species
      †Dasyhelea kanakoffi – type locality for species
      †Dasyhelea stenoceras – type locality for species
      †Decapterus
      †Decapterus hopkinsi
      Delectopecten
      †Delectopecten lillisi
      †Delectopecten peckhami
      †Delphinavus – type locality for genus
      †Delphinavus newhalli – type locality for species
      Deltochilum – tentative report
      Deltocyathus
      †Deltocyathus whitei – type locality for species
      Dendostrea
      †Dendostrea vespertina
      Dendragapus
      †Dendragapus fuliginosus
      †Dendragapus obscurus
      Dendraster
      †Dendraster coalingaensis – or unidentified comparable form
      †Dendraster excentricus
      †Dendraster gibbsi
      Dendrophyllia
      †Dendrophyllia californiana – type locality for species
      †Dendrophyllia oldroydi – tentative report
      †Dendrophyllia tejonensis – type locality for species
      Dendryphantes
      Dentalina
      †Dentalina approximata
      †Dentalina consobrina
      †Dentalina cooperensis
      †Dentalina jarvisi
      †Dentalina legumen – or unidentified comparable form
      †Dentalina nasuta
      †Dentalina pauperata
      †Dentalina quadrulata
      †Dentalina spinosa
      Dentalium
      †Dentalium conradi
      †Dentalium cooperi
      †Dentalium laneensis
      †Dentalium mcganna – type locality for species
      †Dentalium neohexagonum
      †Dentalium radiolineata – or unidentified comparable form
      †Dentalium rectius
      †Dentalium stentor
      †Dentalium stramineum
      Dermochelys – or unidentified related form
      Deroceras
      †Derrhias – type locality for genus
      †Derrhias enantius – type locality for species
      †Desmathyus – or unidentified related form
      †Desmatippus
      †Desmatippus avus
      †Desmatochoerus
      †Desmatochoerus hesperus
      †Desmocyon
      †Desmocyon thomsoni
      †Desmodium
      †Desmodium indentum – type locality for species
      †Desmostylus
      †Desmostylus hesperus – type locality for species
      Diacria
      †Diacria trispinosa
      Diaphana
      †Diaphana brunnea
      †Diceratherium
      Dichocoenia
      †Dichocoenia merriami
      †Dinohippus
      †Dinohippus interpolatus
      †Dinohippus leardi
      †Dinohippus leidyanus
      †Dinohippus mexicanus
      †Dinohyus
      †Dinohyus hollandi
      Diodora
      †Diodora arnoldi
      †Diodora aspera
      †Diodora inaequalis
      †Diomeda
      Diomedea
      †Diomedea milleri – type locality for species
      †Diomedia
      †Diomedia albatrus
      †Diomedia nigripes
      †Dioplotherium
      †Dioplotherium allisoni
      †Diospyros
      †Diospyros oregoniana
      †Diospyros retinervis
      Diplodonta
      †Diplodonta buwaldana
      †Diplodonta cretacea
      †Diplodonta orbella
      †Diplodonta pariiis
      †Diplodonta parilis
      †Diplodonta sericata
      Diploria
      †Diploria bowersi – type locality for species
      Dipodomys
      †Dipodomys agilis – or unidentified comparable form
      †Dipodomys compactus
      †Dipodomys deserti – or unidentified comparable form
      †Dipodomys heermanni – or unidentified comparable form
      †Dipodomys hibbardi
      †Dipodomys merriami
      †Dipodomys minor
      †Dipodomys ordii
      †Dipoides
      †Dipoides vallicula
      †Diprionomys
      †Diprionomys parvus – or unidentified comparable form
      Discammina – tentative report
      †Discammina eocenica
      Discinisca
      †Discinisca cumingi
      †Discohelix
      †Discohelix californicus
      †Dissacus
      Distorsio
      Divalinga
      †Divalinga eburnea
      Divaricella
      †Divaricella cumulata
      †Domnina
      †Domninoides
      Donax
      †Donax californicus
      †Donax gouldii
      †Dorothia
      †Dorothia californica
      Dosinia
      †Dosinia conradi
      †Dosinia dunkeri
      †Dosinia jacalitosana
      †Dosinia margaritana
      †Dosinia mathewsoni
      †Dosinia mathewsonii
      †Dosinia merriami
      †Dosinia milthoidea – tentative report
      †Dosinia ponderosa
      †Dosinia santana – type locality for species
      †Dosinia semiobliterata – or unidentified comparable form
      †Dosinia whitneyi
      †Dosiniopsis
      †Dosiniopsis stewartvillensis – type locality for species
      †Drimys – type locality for genus
      †Drimys defensor – type locality for species
      †Dromomeryx
      †Duchesneodus
      †Duchesneodus uintensis
      †Dusignathus – type locality for genus
      †Dusignathus santacruzensis – type locality for species
      †Dusignathus seftoni – type locality for species
      †Dusisiren
      †Dusisiren dewana
      †Dusisiren jordani – type locality for species
      †Dyseohyus – type locality for genus
      †Dyseohyus fricki – type locality for species
      †Dyseolemur
      †Dyseolemur pacificus – type locality for species
      Dytiscus
      †Dytiscus marginicollis


      E



      Echinarachnius
      †Echinarachnius fairbanksi
      Echinorhinus
      †Echinorhinus blakei
      Eclipes – type locality for genus
      †Eclipes extensus
      †Eclipes manni
      †Eclipes santamonicae – type locality for species
      †Eclipes veternus – type locality for species
      †Ectasis – type locality for genus
      †Ectasis proriger – type locality for species
      †Ectinochilus
      †Ectinochilus macilentus
      †Ectopistes
      †Ectopistes migratorius
      Eleodes
      †Eleodes acuticaudus
      †Eleodes giganteus
      †Eleodes gracilis
      †Eleodes grandicollis – type locality for species
      †Eleodes laticollis
      †Eleodes omissus
      †Eleodes osculans – type locality for species
      Elgaria
      †Elgaria multicarinata
      †Ellimma
      †Ellimma barbarae – type locality for species
      †Ellimma elmodenae – type locality for species
      †Ellipsonodosaria
      †Ellipsonodosaria alexanderi – or unidentified comparable form
      †Ellipsonodosaria atlantisae
      †Ellipsonodosaria recta
      †Ellipsonodosaria spinulosa
      Elliptotellina
      †Elliptotellina townsendensis – or unidentified comparable form
      †Elomeryx
      †Elomeryx armatus
      †Emmachaere – type locality for genus
      †Emmachaere rhachites – type locality for species
      †Emmachaere rhomalea
      †Enaliarctos
      †Enaliarctos mealsi
      †Enaliarctos mitchelli
      †Enallagma – type locality for genus
      †Enallagma kirkbyae – type locality for species
      Encope
      †Encope tenuis – type locality for species
      Engelhardtia
      †Engelhardtia nevadensis
      Engina
      †Engina strongi
      †Engraulites – type locality for genus
      †Engraulites remifer – type locality for species
      Enhydra
      †Enhydra lutris
      †Enhydra macrodonta – type locality for species
      †Enhydritherium
      †Enhydritherium terraenovae
      Ensis
      †Ensis myrae
      Entomobrya
      †Entomobrya atrocincta
      †Entomobrya kirkbyae – type locality for species
      †Eocernia
      †Eocernia hannibali
      †Eocypraea
      †Eocypraea castacensis – or unidentified comparable form
      †Eocypraea maniobraensis – type locality for species
      †Eogryphus
      †Eogryphus tolmani – or unidentified comparable form
      †Eohaplomys
      †Eohaplomys matutinus – type locality for species
      †Eohaplomys serus – type locality for species
      †Eohaplomys tradux – type locality for species
      †Eomellivora
      †Eomellivora wimani – or unidentified comparable form
      †Eopelobates
      †Eopleurotoma
      †Eopleurotoma whitakerpeakensis – type locality for species
      †Eoscorpius – type locality for genus
      †Eoscorpius primaevus – type locality for species
      †Eosurcula
      †Eosurcula inconstans – or unidentified related form
      †Eotaria – type locality for genus
      †Eotaria citrica – type locality for species
      †Eotaria crypta – type locality for species
      †Eotibia
      †Eotibia llajasensis – type locality for species
      †Eotylopus
      †Epelichthys – type locality for genus
      †Epelichthys michaelis – type locality for species
      †Epicyon
      †Epicyon haydeni
      †Epicyon saevus
      †Epihippus
      Epilucina
      †Epilucina californica
      Epinephelus
      †Epiphragmophora
      †Epiphragmophora mormonum
      †Epistomina
      †Epistomina eocenica
      Epitonium
      †Epitonium bellastriata
      †Epitonium bellastriatum
      †Epitonium clarki
      †Epitonium condoni
      †Epitonium cookii – or unidentified related form
      †Epitonium cooperi
      †Epitonium indianorum
      †Epitonium insculptum
      †Epitonium rugiferum – or unidentified comparable form
      †Epitonium sawinae
      Eponides
      †Eponides keenani
      †Eponides kleinpelli
      †Eponides lodoensis
      †Eponides umbonatus
      Eptesicus
      †Eptesicus fuscus – or unidentified comparable form
      †Equisetum
      Equus
      †Equus conversidens
      †Equus enormis
      †Equus idahoensis
      †Equus pacificus
      †Equus scotti
      †Equus simplicidens
      Eremophila
      †Eremophila alpestris
      Erethizon
      †Erethizon bathygnathum
      †Erethizon cascoensis – type locality for species
      †Erethizon dorsatum
      †Eriquius
      †Eriquius plectrodes
      †Erisceles – type locality for genus
      †Erisceles pristinus – type locality for species
      †Eritima
      †Eritima evides – type locality for species
      †Escharion – type locality for genus
      †Escharion townleyi – type locality for species
      Eschrichtius
      †Eschrichtius robustus – or unidentified comparable form
      †Etringus
      †Etringus scintillans
      Eubalaena – or unidentified comparable form
      †Eucastor
      †Euceratherium – type locality for genus
      †Euceratherium collinum – type locality for species
      Eucrassatella
      †Eucrassatella semidentata
      †Eucrassatella subgibbosus – type locality for species
      †Eucyon
      †Eucyon davisi
      Euleptorhamphus
      †Euleptorhamphus peronides
      Eumetopias
      †Eumetopias jubata
      †Euoplocyon
      †Euoplocyon brachygnathus
      Eupatagus
      †Eupatagus stevensi
      Euphagus
      †Euphagus cyanocephalus
      Eurytellina
      †Eurytellina lorenzoensis
      Euscelis
      †Euscelis palmeri – type locality for species
      Eusmilia
      †Eusmilia carrizensis – type locality for species
      Euspira
      †Euspira gesteri
      †Euspira hornii
      †Euspira lewisii
      †Euspira muriciformis
      †Euspira nuciformis
      †Euspirocromium
      †Euspirocromium martinezensis
      †Euspirocrommium
      †Euspirocrommium martinezensis
      Eutamias
      †Eutrephoceras
      †Eutrephoceras hallidayi
      †Eutrephoceras hannai
      †Eutrephoceras marksi
      †Eutrephoceras stephensoni – type locality for species
      Euvola
      †Euvola keepi
      †Euvola vogdesi
      †Evesthes
      †Evesthes jordani
      †Exaeretoptera – report made of unidentified related form or using admittedly obsolete nomenclature
      †Exaeretoptera fosteri – type locality for species
      †Exilia
      †Exilia fausta
      †Exilia talliaferroi – or unidentified comparable form


      F



      Falco
      †Falco peregrinus
      †Falco sparverius
      Falsifusus
      Farrea
      †Farrea rugosa – type locality for species
      Fartulum
      †Fartulum hemphilli
      †Fartulum occidentale
      Felaniella
      †Felaniella harfordi
      Felis
      †Felis lacustris
      †Felis rexroadensis
      †Ficopsis
      †Ficopsis cooperiana
      †Ficopsis crescentensis
      †Ficopsis horni
      †Ficopsis meganosensis – type locality for species
      †Ficopsis redmondii
      †Ficopsis remondi
      †Ficopsis remondii
      Ficus
      †Ficus decussata
      †Ficus densifolia
      †Ficus gesteri
      †Ficus goshenensis
      †Ficus modesta – or unidentified comparable form
      †Ficus nodiferum
      †Ficus ocoyana
      †Ficus pyriformis
      Fimbria
      †Fimbria pacifica
      †Fimbria susanensis – type locality for species
      Fissurella
      †Fissurella behri – or unidentified related form
      †Fissurella volcano
      Flabellipecten
      †Flabellipecten carrizoensis
      †Flabellipecten stearnsii
      Flabellum
      †Flabellum californicum
      †Flabellum clarki – type locality for species
      †Flabellum cuneiforme
      †Flabellum stantoni
      †Forestiera
      †Forestiera buchananensis
      †Forfex – type locality for genus
      †Forfex hypuralis – type locality for species
      Forreria
      †Forreria belchei
      †Forreria belcheri
      †Forreria carisaensis
      †Forreria coalingensis
      †Fragilaria
      †Fragilaria brevistriata
      †Fragilaria construens
      †Fragilaria pinnata
      Fratercula
      †Fratercula cirrhata
      †Fratercula dowi – type locality for species
      †Fraxinus
      †Fraxinus yubaensis – type locality for species
      Frondicularia
      †Frondicularia tenuissima
      Fulgoraria
      †Fulgoraria prevostiana
      †Fulgoraria zinsmeisteri – type locality for species
      †Fulica
      †Fulica americana
      Fulmarus
      †Fulmarus glacialis
      †Fulmarus griseus
      †Fulmarus hammeri – type locality for species
      †Fulmarus miocaenus – type locality for species
      Fusimitra – tentative report
      †Fusimitra simplicissima – or unidentified comparable form
      Fusinus
      †Fusinus barbarensis
      †Fusinus calabasensis
      †Fusinus chehalisensis – or unidentified comparable form
      †Fusinus hecoxi
      †Fusinus lincolnensis – or unidentified related form
      †Fusinus luteopictus
      †Fusinus meganosensis – type locality for species
      †Fusinus merriami – or unidentified related form
      †Fusinus simiensis


      G



      Galeocerdo
      †Galeocerdo aduncus
      †Galeocerdo medius
      Galeodea
      †Galeodea calfornica
      †Galeodea carinata – or unidentified related form
      †Galeodea meganosensis
      †Galeodea petersoni – or unidentified related form
      †Galeodea susanae
      †Galeodea sutterensis
      Galeorhinus
      †Galeorhinus hannibali
      †Galeorhinus latus – or unidentified comparable form
      †Galeorhinus zopterus
      †Ganolytes
      †Ganolytes aratus
      †Ganolytes cameo
      †Ganolytes clepsydra – type locality for species
      Gari
      †Gari californica
      †Gari diegoensis – or unidentified comparable form
      †Gari furcata
      †Gari hornii
      †Gari texta
      †Gasterosternus
      †Gasterosternus aculeatus
      Gasterosteus
      †Gasterosteus aculeatus
      Gastrochaena
      †Gastrochaena dubitata – tentative report
      Gaudryina
      †Gaudryina laevigata
      †Gaudryina triangularis – or unidentified comparable form
      Gavia
      †Gavia arctica
      †Gavia brodkorbi – type locality for species
      †Gavia concinna
      †Gavia howardae – type locality for species
      †Gavia immer
      †Gavia pacifica
      †Gavia stellata
      †Gemelliporella – tentative report
      †Gemelliporella punctata – or unidentified related form
      Gemmula
      †Gemmula diabloensis – type locality for species
      †Gemmula wattsi
      Genota
      †Genota keepi
      Genyonemus
      †Genyonemus lineatus
      Geochelone
      †Geococcyx
      †Geococcyx californianus
      Geomys
      Geranoaetus
      Gerrhonotus
      Gibbolucina
      †Gibbolucina gyrata
      †Gibbolucina turneri
      †Gila – tentative report
      †Gilbertia
      †Gisortia
      †Gisortia clarki
      Glans
      †Glans carpenteri
      Glaucidium
      †Glaucidium gnoma
      Glebocarcinus
      †Glebocarcinus amphioetus
      Globigerina
      †Globigerina bulloides
      †Globigerina decepta
      †Globigerina ouachitaensis
      †Globigerina triloculinoides
      Globorotalia
      †Globorotalia crassata
      Globularia
      †Globularia hannabali – or unidentified comparable form
      Glossus
      †Glossus susukii – type locality for species
      Glycimeris
      Glycymeris
      †Glycymeris branneri
      †Glycymeris gigantea
      †Glycymeris major
      †Glycymeris perrini
      †Glycymeris rosecanyonensis
      †Glycymeris sagittata
      †Glycymeris septentrionalis
      †Glycymeris veatchi
      †Glycymeris veatchii
      Glyptoactis
      †Glyptoactis domenginica
      †Glyptoactis keenae
      †Glyptoactis mcmasteri
      †Glyptoactis sandiegoensis
      Glyptostrobus
      †Glyptostrobus oregonensis
      †Gnathamitermes
      †Gnathamitermes rousei – type locality for species
      Gnathotermes
      †Golerdelphys – type locality for genus
      †Golerdelphys stocki – type locality for species
      †Goleremys – type locality for genus
      †Goleremys mckennai – type locality for species
      †Gomphotaria – type locality for genus
      †Gomphotaria pugnax – type locality for species
      †Gomphotherium
      †Gomphotherium obscurum
      †Goniobasis – tentative report
      Goniopora
      †Goniopora vaughani – type locality for species
      Gopherus
      †Gopherus agassizi
      †Gopherus agassizii
      †Gopherus mohavetus – type locality for species
      †Gordonia
      †Gordonia egregia
      Granulina
      †Granulina margaritula
      †Gripholagomys – tentative report
      †Griphomys
      †Griphomys alecer – type locality for species
      †Griphomys toltecus – type locality for species
      Gymnogyps
      †Gymnogyps californianus – type locality for species
      Gyroidina
      †Gyroidina condoni
      †Gyroidina orbicularis
      †Gyroidina planulata
      †Gyroidina soldanii


      H



      †Hadrogyps – type locality for genus
      †Hadrogyps aigialeus – type locality for species
      Haliaeetus
      †Haliaeetus leucocephalus
      †Haliaetus
      †Haliaetus leucocephalus
      †Halonanus
      †Halonanus horni
      †Hamamelites
      †Hamamelites voyana
      Haminoea
      †Haminoea postangulata – type locality for species
      †Haminoea vesicula
      Hanetia
      †Hanetia elegans
      †Hantkenina
      †Hantkenina alabamensis
      Haplophragmoides
      †Haplophragmoides flagleri
      †Haplophragmoides obliquicameratus
      †Harpagolestes – or unidentified comparable form
      †Harrymys
      †Harrymys magnus
      Harvella
      †Harvella elegans
      †Hastigerinella
      †Hastigerinella eocenica
      †Hayia – type locality for genus
      †Hayia daulica – type locality for species
      †Heliscomys
      †Heliscomys walshi – type locality for species
      Heloderma
      †Hemiacodon
      †Hemiacodon gracilis
      †Hemiauchenia
      †Hemiauchenia macrocephala
      Hemipristis
      †Hemipristis heteropleurus
      †Hemipristis serra
      Hemitelia
      †Hemitelia pinnata – type locality for species
      Hemitoma
      †Hemitoma cantonensis – type locality for species
      †Hercoglossa
      †Hercoglossa merriami – type locality for species
      †Hercoglossa simiensis – type locality for species
      Here
      †Here excavata
      †Herpetocetus
      †Herpetocetus bramblei – type locality for species
      †Herpetocetus morrowi – type locality for species
      †Herpetotherium
      †Herpetotherium innominatum – or unidentified comparable form
      †Herpetotherium knighti – or unidentified comparable form
      †Herpetotherium valens
      †Hesperaletes
      †Hesperaletes borineyi – type locality for species
      †Hesperaletes walshi – type locality for species
      Hespererato
      †Hespererato columbella
      †Hesperhys
      †Hesperhys vagrans
      †Hesperocamelus – or unidentified comparable form
      †Hesperocetus – type locality for genus
      †Hesperocetus californicus – type locality for species
      †Hesperolagomys
      Hesperomys
      †Hesperomys nematodon
      †Hesperotestudo
      †Hesperotestudo orthopygia
      Heterodontus
      †Heterodontus francisi – or unidentified comparable form
      †Heteropliohippus
      †Heteropliohippus hulberti – type locality for species
      Heterosilpha
      †Heterosilpha ramosa
      Heteroterma
      †Heteroterma striata
      †Heteroterma trochoidea
      †Hexacanthus
      Hexagrammos
      †Hexagrammos achrestus – type locality for species
      Hexanchus
      †Hexanchus aus
      †Hexanchus bus
      Hiatella
      †Hiatella arctica
      †Hilgardia – tentative report
      †Hilgardia parkei
      †Hiltonius
      †Hiltonius australis – type locality for species
      †Hipparion
      †Hipparion forcei
      †Hipparion tehonense
      †Hippidion
      †Hippipeda
      †Hippnoe
      †Hippnoe californica
      Hipponix
      †Hipponix craniodes
      †Hipponix tumens
      †Hipponoe
      †Hipponoe californica
      †Hippotherium
      Histrionicus
      †Histrionicus histrionicus – tentative report
      Hodomys
      Homalopoma
      †Homalopoma carpenteri
      †Homalopoma domenginensis
      †Homalopoma pacifica
      †Homalopoma wattsi
      Homo
      †Homo sapiens
      †Homomya
      †Homotherium
      †Homotherium serum – or unidentified comparable form
      †Hopkinsina
      †Hopkinsina compressa
      †Hoplictis
      †Hoplictis grangerensis – or unidentified comparable form
      †Hoplophoneus
      †Hoplophoneus cerebralis
      †Humilaria
      †Humilaria perlaminosa
      †Hyaenodon
      †Hyaenodon venturae
      †Hyaenodon vetus – type locality for species
      Hyalina
      †Hyalina californica
      †Hyalinonetrion
      †Hyalinonetrion clavatum
      Hydrangea
      †Hydrangea californica – type locality for species
      †Hydrodamalis
      †Hydrodamalis cuestae – type locality for species
      †Hydrodamalis gigas
      Hydrophilus
      Hyla
      †Hyopsodus – or unidentified comparable form
      †Hyperbaena
      †Hyperbaena diforma
      †Hypertragulus
      †Hypertragulus calcaratus
      †Hypertragulus hesperius
      †Hypohippus
      †Hypolagus
      †Hypolagus edensis – type locality for species
      †Hypolagus fontinalis
      †Hypolagus furlongi
      †Hypolagus gidleyi
      †Hypolagus parviplicatus – or unidentified comparable form
      †Hypolagus tedfordi
      †Hypolagus vetus
      †Hyrachyus


      I



      †Ibarus
      †Ibarus ignotus – or unidentified comparable form
      †Idiophyseter – type locality for genus
      †Idiophyseter merriami – type locality for species
      †Ignacius
      †Ignacius frugivorus
      †Ilingoceros
      †Imagotaria – type locality for genus
      †Imagotaria downsi – type locality for species
      †Indarctos
      †Inga
      †Inga ionensis – type locality for species
      †Interchlamys
      †Interchlamys interlineata – or unidentified comparable form
      †Ioscion
      †Ioscion morgani
      Ischnochiton
      †Ischnochiton sanctaemonicae
      †Ischyrocyon
      †Ischyrocyon gidleyi
      †Ischyromys
      Iselica
      †Iselica fenestrata
      Isognomon
      †Isognomon clarki
      Isurus
      †Isurus aus
      †Isurus benedini
      †Isurus bus
      †Isurus oxyrhynchus
      †Isurus oxyrinchus
      †Isurus planus


      J



      †Jacobsomys
      †Jacobsomys dailyi – type locality for species
      †Jamilcotatus
      †Jamilcotatus boreios – type locality for species
      Jaton
      †Jaton eldridgei
      †Jaton festivus
      †Johannsenomyia
      †Johannsenomyia hotchkissae – type locality for species
      Jouannetia
      Juliacorbula
      †Juliacorbula luteola
      †Julus
      †Julus cavicola – type locality for species
      †Julus occidentalis – type locality for species
      †Jumaraina
      †Jumaraina rinconensis – type locality for species
      †Juncus
      Juniperus


      K



      Kalolophus
      †Kalolophus antillarum – or unidentified comparable form
      †Kampholophos – type locality for genus
      †Kampholophos serrulus – type locality for species
      Karreriella
      †Karreriella barbati
      †Karreriella mediaaquaensis
      Katherinella
      Kelletia
      †Kelletia kelletii
      Kellia
      †Kellia suborbicularis
      †Kentriodon – type locality for genus
      †Kentriodon obscurus – type locality for species
      †Keteleeria
      †Keteleeria heterophylloides
      †Kewia – tentative report
      †Kewia fairbanksi – or unidentified comparable form
      †Kingena
      †Kingena simiensis
      †Kirkomys – or unidentified comparable form
      †Knightomys – or unidentified comparable form
      †Kummelonautilus
      Kurtiella
      †Kurtiella tumida
      Kurtzia
      †Kurtzia arteaga
      Kurtziella
      †Kurtziella plumbea


      L



      †Labyrinthus
      †Labyrinthus obtusus – type locality for species
      Lacuna
      †Lacuna carinata
      †Lacuna porrecta
      †Lacuna solidula
      †Lacuna unifasciata
      †Lacunaria
      †Lacunaria striata – or unidentified related form
      Laevicardium
      †Laevicardium elatum
      †Laevicardium substriatum
      Lagena
      †Lagena isabella
      †Lagena strumosa
      †Lagena substriata
      †Lagena sulcata
      †Lagena vulgaris
      Lamelliconcha
      †Lamelliconcha clarki
      Lamna
      Lampanyctus
      †Lampris – type locality for genus
      †Lampris zatima – type locality for species
      †Lamprolithax – type locality for genus
      †Lamprolithax annectens – type locality for species
      †Lamprolithax simulans – type locality for species
      Lampropeltis
      †Lampropeltis getulus
      †Lantanotherium
      †Lantanotherium dehmi
      †Lantanotherium sawini
      †Lapparia
      †Lapparia eomagna
      Larus
      †Larus californicus
      †Larus delawarensis
      †Larus glaucescens
      †Larus philadelphia
      Latirus
      †Latirus buwaldana
      †Latirus nightingalei – or unidentified comparable form
      †Latirus roseburgensis – or unidentified comparable form
      †Laurophyllum
      †Laurophyllum fremontensis
      †Laurophyllum litseaefolia
      †Laytonia – type locality for genus
      †Laytonia californica – type locality for species
      Lechytia
      Leda
      †Leda gabbi
      †Legionarictis – type locality for genus
      †Legionarictis fortidens – type locality for species
      †Leidymys
      †Lembicus – type locality for genus
      †Lembicus meiklejohni – type locality for species
      Lenticulina
      †Lenticulina convergens
      Lepeta
      †Lepeta concentrica
      Lepidochitona
      †Lepidochitona keepiana
      †Lepidogobias
      †Lepidogobias lepidus
      Lepidozona
      †Lepidozona pectinulatus
      Lepisosteus
      †Lepisosteus spatula – or unidentified comparable form
      †Leptacanthichthys
      †Leptacanthichthys gracilispinis
      †Leptarctus
      †Leptarctus ancipidens
      †Leptarctus wortmani
      †Leptocyon
      †Leptocyon leidyi
      †Leptocyon tejonensis – type locality for species
      †Leptocyon vafer
      †Leptocyon vulpinus
      †Leptodontomys
      †Leptodontomys stirtoni
      †Leptomeryx
      †Leptomeryx blacki
      Leptopecten
      †Leptopecten andersoni
      †Leptopecten latiauratus
      †Leptoreodon
      †Leptoreodon edwardsi – type locality for species
      †Leptoreodon golzi – type locality for species
      †Leptoreodon leptolophus – type locality for species
      †Leptoreodon major – type locality for species
      †Leptoreodon marshi – or unidentified comparable form
      †Leptoreodon pusillus – type locality for species
      †Leptoreodon stocki – type locality for species
      †Leptotomus
      †Leptotomus caryophilus
      Lepus
      †Lepus americanus
      †Lepus californicus
      †Lepus callotis
      Leukoma
      †Leukoma staminea
      Lima
      Limaria
      †Limaria hemphilli
      †Limnocyon
      †Limnoecus
      †Limnoecus tricuspis – type locality for species
      †Limosa
      †Limosa fedoa
      †Limosa vanrossemi – type locality for species
      Linga
      †Linophryne
      †Linophryne indica
      †Liolithax – type locality for genus
      †Liolithax kernensis – type locality for species
      Liquidambar
      †Liquidambar californicum
      Lirobittium – tentative report
      †Lirosceles
      †Lirosceles elegans – type locality for species
      Lirularia
      †Lirularia funiculata
      †Lirularia lirulata
      Lissodelphis – or unidentified comparable form
      †Lithocarpus
      †Lithocarpus klamathensis
      †Lithocarpus nevadensis
      Lithophaga
      †Lithophaga plumula
      Lithophyllum
      †Lithophyllum sierraeblancae – type locality for species
      †Lithornis – or unidentified comparable form
      Lithothamnion
      †Lithothamnion grahami
      †Lithothamnion laminosum – type locality for species
      †Lithothamnion luxurum
      †Lithothamnion manni
      †Lithothamnion meganosium
      †Lithothamnion validum – or unidentified related form
      †Lithothamnion wallisium
      †Litorhadia
      †Litorhadia washingtonensis – or unidentified comparable form
      Littorina
      †Littorina petricola
      †Littorina planaxis
      †Littorina scutulata
      †Lituyapecten
      †Lituyapecten purisimaensis
      †Lompoquia – type locality for genus
      †Lompoquia retropes – type locality for species
      †Lonchodelphis
      †Lonchodelphis occiduus – type locality for species
      Lontra
      †Lontra canadensis
      †Lophar – type locality for genus
      †Lophar miocaenus – type locality for species
      †Lophocetus
      †Lophocetus repenningi – type locality for species
      †Lophortyx
      †Lophortyx californica
      †Lora
      †Losinia
      Lottia
      †Lottia limatula
      †Lottia scabra
      †Loxolithax – type locality for genus
      †Loxolithax sinuosa – type locality for species
      †Loxotrema
      †Loxotrema turritum
      Lucapinella
      †Lucapinella callomarginata
      Lucina
      †Lucina gaylordi
      †Lucina wattsi
      Lucinisca
      †Lucinisca nuttalli
      Lucinoma
      †Lucinoma acutilineata
      †Lucinoma annulatum
      Luidia
      †Luidia etchegoinensis – type locality for species
      †Luidia sanjoaquinensis – type locality for species
      †Lutianus
      †Lutianus hagari – type locality for species
      †Lycophocyon – type locality for genus
      †Lycophocyon hutchisoni – type locality for species
      †Lygisma – type locality for genus
      †Lygisma tenax – type locality for species
      Lygodium
      †Lygodium kaulfussi
      Lynx
      †Lynx fasciatus
      †Lynx rufus
      Lyonsia
      †Lyonsia califomica
      †Lyonsia venturaensis – type locality for species
      Lyria
      †Lyria andersoni
      †Lyrischapa
      †Lyrischapa lajollaensis
      †Lyropecten
      †Lyropecten bowersi
      †Lyropecten crassicardo
      †Lyropecten magnolia
      †Lyropecten miguelensis
      †Lyropecten perrini
      †Lyrosurcula – tentative report


      M



      †Machaeromeryx – tentative report
      †Machaeromeryx tragulus
      †Machairodus
      Macoma
      †Macoma andersoni
      †Macoma calcarea
      †Macoma carlottensis
      †Macoma copelandi
      †Macoma diabloensis
      †Macoma expansa
      †Macoma indentata
      †Macoma inquinata
      †Macoma moesta
      †Macoma nasuta
      †Macoma pabloensis – or unidentified comparable form
      †Macoma panzana
      †Macoma planiuscula – or unidentified comparable form
      †Macoma secta
      †Macoma viticola
      Macrarene
      Macrocallista
      †Macrocallista furlongi – or unidentified comparable form
      †Macrocallista horni – or unidentified comparable form
      †Macrocallista meganosensis – type locality for species
      †Macrocallista pittsburgensis
      †Macrocallista squalida
      †Macrocallista squalidus
      †Macrocallista weaveri
      †Macrochlamis
      †Macrochlamis magnolia
      †Macrodelphinus – type locality for genus
      †Macrodelphinus kelloggi – type locality for species
      †Macrotarsius
      †Macrotarsius roederi – type locality for species
      Mactromeris
      †Mactromeris abbotti
      †Mactromeris acutirostrata – or unidentified comparable form
      †Mactromeris albaria
      †Mactromeris bisculpturata – or unidentified comparable form
      †Mactromeris brevirostrata
      †Mactromeris catilliformis
      †Mactromeris hemphillii
      †Mactromeris mercedensis – or unidentified comparable form
      †Mactromeris merriami
      †Mactromeris montereyana – type locality for species
      †Mactromeris muliniaformis – type locality for species
      †Mactromeris pittsburgensis – or unidentified comparable form
      †Mactromeris polynyma
      †Mactromeris ramonensis
      †Mactromeris rushi
      †Mactromeris sectoris
      †Mactromeris tejonensis
      Mactrotoma
      †Mactrotoma californica
      †Mactrotoma nasuta
      Madracis
      †Madracis wellsi – type locality for species
      Madrepora
      †Madrepora solida – type locality for species
      Magnolia
      †Magnolia corrallina
      †Magnolia dayana
      Mahonia
      †Mahonia macginitiei
      †Mahonia reticulata
      †Mahonia simplex
      Makaira
      Malea
      †Malea ringens
      Malletia
      Mallotus
      †Mallotus riparius
      †Mambrinia
      †Mambrinia gallica – type locality for species
      †Mammut
      †Mammut americanum – all local specimens previously referred to this species have since been reclassified in the new species M. pacificus.
      †Mammut cosoensis
      †Mammut matthewi
      †Mammut pacificus – type locality for species. Many specimens were previously regarded as specimens of M. americanum.
      †Mammuthus
      †Mammuthus columbi
      †Mammuthus exilis
      †Mammuthus hayi
      †Mammuthus primigenius
      †Mancalla – type locality for genus
      †Mancalla californiensis – type locality for species
      †Mancalla cedrosensis – or unidentified comparable form
      †Mancalla diegenesis
      †Mancalla diegensis – type locality for species
      †Mancalla emlongi – type locality for species
      †Mancalla lucasi – type locality for species
      †Mancalla milleri – type locality for species
      †Mancalla vegrandis
      †Mancalla vergrandis – type locality for species
      †Mangelia
      †Mangelia variegata
      †Margaritana
      †Margaritana falcata – or unidentified comparable form
      Margarites
      †Margarites pupillus
      Marginella
      Marginulina
      †Marginulina adunca – or unidentified comparable form
      †Marginulina dubia
      †Marginulina eximia
      †Marginulina munda
      Marmota
      †Marshochoerus
      †Marshochoerus socialis
      Martes
      Martesia
      †Martesia meganosensis – type locality for species
      †Martinogale
      †Martinogale faulli – type locality for species
      Martinottiella
      †Martinottiella eocenica
      Maxwellia
      †Maxwellia gemma
      †Mayena – tentative report
      †Mayena kewi – or unidentified comparable form
      †Mealanitta
      †Mealanitta deglandi
      †Mediochoerus
      †Mediochoerus mohavensis
      †Megacamelus
      †Megacamelus merriami
      Megachasma
      †Megachasma applegatei – type locality for species
      Megachile
      †Megachile gentilis
      †Megahippus
      †Megahippus matthewi
      †Megahippus mckennai – type locality for species
      †Megalonyx
      †Megalonyx jeffersonii
      †Megalonyx mathisi – type locality for species
      †Megalonyx wheatleyi
      Megalops – tentative report
      †Megalops vigilax
      †Megapaloelodus
      †Megapaloelodus connectens
      †Megapetalus
      Megaptera
      †Megaptera miocaena – type locality for species
      Megatebennus
      †Megatebennus bimaculata
      †Megatebennus bimaculatus
      Megathura – tentative report
      †Megatylopus
      †Megatylopus matthewi – or unidentified comparable form
      †Megistostoma
      †Megistostoma gabbiana – or unidentified comparable form
      Melampus
      †Melampus olivaceous
      †Melampus olivaceus
      Melanella
      †Melanella hastata
      †Melanella micans
      Melanitta
      †Melanitta ceruttii – type locality for species
      †Melanitta deglandi – tentative report
      †Melanitta fusca
      †Melanitta perspicillata
      Melanoplus
      †Melanoplus differentialis
      Melanthrips
      Meleagris
      †Meleagris richmondi – type locality for species
      †Meliosma
      †Meliosma truncata – type locality for species
      †Melosira
      †Melosira solida
      Melospiza
      †Melospiza melodia
      †Meniscomys
      †Meniscotherium
      †Meniscotherium tapiacitum
      †Menoceras
      †Menoceras barbouri
      Mephitis
      †Mephitis mephitis
      †Mercyhippus – report made of unidentified related form or using admittedly obsolete nomenclature
      †Mercyhippus brevidontus
      Meretrix
      †Meretrix californica
      †Meretrix conradi
      †Meretrix hornii
      †Meretrix lorenzana
      †Meretrix palmeri – type locality for species
      †Meretrix stantoni
      †Meretrix uvasana – type locality for species
      Mergus
      †Mergus serrator
      Merluccius
      †Merluccius productus
      †Merriamina – type locality for genus
      †Merriamina ectenes – type locality for species
      †Merriamoceros
      †Merriamoceros coronatus – type locality for species
      †Merychippus
      †Merychippus brevidontus – type locality for species
      †Merychippus californicus – type locality for species
      †Merychippus relictus – or unidentified comparable form
      †Merychippus stevensi
      †Merychyus
      †Merychyus elegans
      †Merychyus minimus
      †Merychyus novomexicanus
      †Merychyus smithi
      †Merycobunodon
      †Merycobunodon littoralis – type locality for species
      †Merycodus
      †Merycodus joraki
      †Merycodus necatus
      Mesalia
      †Mesalia clarki – type locality for species
      †Mesalia martinezensis
      †Mesocyon
      †Mesocyon brachyops
      †Mesocyon coryphaeus
      †Mesodma – tentative report
      †Mesohippus
      Mesophyllum
      †Mesophyllum californicum
      †Mesophyllum fructiferum
      †Mesophyllum obsitum
      †Mesophyllum schenckii – type locality for species
      †Mesophyllum schenki
      †Mesoreodon
      †Mesoreodon chelonyx
      †Metacerithium
      †Metacerithium packardi
      †Metalopex
      †Metalopex merriami
      †Metanoiamys
      †Metanoiamys agorus – type locality for species
      †Metanoiamys fantasma
      †Metanoiamys korthi – type locality for species
      †Metanoiamys marinus – type locality for species
      †Metarhinus
      †Metarhinus pater – type locality for species
      †Metatomarctus
      †Metatomarctus canavus
      †Metaxytherium
      †Metaxytherium arctodites
      †Metechinus
      †Metechinus amplior
      †Miacis
      †Miacis hookwayi – type locality for species
      †Michenia
      †Michenia agatensis
      †Michenia mudhillsensis
      Micranellum
      †Micranellum crebricinctum
      †Microcosmodon – or unidentified comparable form
      Microdipodops
      Microgadus – tentative report
      †Micropallus
      †Micropallus whitneyi
      †Microparamys
      †Microparamys minutus – or unidentified comparable form
      †Microparamys tricus – type locality for species
      †Microparamys woodi – type locality for species
      †Microsula
      †Microsyops
      †Microsyops annectens – or unidentified comparable form
      †Microsyops kratos – type locality for species
      †Microtomarctus
      †Microtomarctus conferta
      Microtus
      †Microtus californicus
      †Microtus meadensis
      †Microtus miguelensis – type locality for species
      Mictomys
      †Mictomys kansasensis
      †Mictomys vetus
      Miltha
      †Miltha meganosensis – type locality for species
      †Miltha packi
      †Miltha sanctaecrucis
      †Miltha xantusi
      †Mimomys
      †Mimotricentes
      †Mimotricentes tedfordi – type locality for species
      †Miochlorotettix – type locality for genus
      †Miochlorotettix gibroni – type locality for species
      †Miochlorotettix kirkbyi – type locality for species
      †Miocryptorhopalum – type locality for genus
      †Miocryptorhopalum kirkbyae – type locality for species
      †Miocyon
      †Miocyon scotti – or unidentified comparable form
      †Miodelphis – type locality for genus
      †Miodelphis californicus – type locality for species
      †Miogonates – type locality for genus
      †Miogonates subimpunctatus – type locality for species
      †Miohierax – type locality for genus
      †Miohierax stocki – type locality for species
      †Miohippus
      †Miohippus annectens
      †Miolabis
      †Miolabis californicus – type locality for species
      †Miolabis fricki – type locality for species
      †Miomancalla
      †Miomancalla howardi – type locality for species
      †Miomancalla wetmorei – type locality for species
      †Miomesamia – type locality for genus
      †Miomesamia juliae – type locality for species
      †Miomonalonion – type locality for genus
      †Miomonalonion conoidifrons – type locality for species
      †Miomustela
      †Mionictis
      †Mionictis angustidens
      †Miospermophilus
      †Miospermophilus wyomingensis – or unidentified comparable form
      †Miosula – type locality for genus
      †Miosula media – type locality for species
      †Miotapirus
      †Miotomodon
      †Miotomodon mayi – type locality for species
      †Miotroctes – type locality for genus
      †Miotroctes rousei – type locality for species
      †Miotylopus
      †Miotylopus gibbi
      †Miracinonyx
      †Miracinonyx studeri – tentative report
      Mirounga
      †Mirounga angustirostris – or unidentified comparable form
      Mitra
      †Mitra fultoni
      †Mitra idae
      †Mitra idea
      †Mitra simplicissima
      Mitrella
      †Mitrella carinata
      †Mitrella gausapata
      †Mitrella gouldi
      †Mitrella tuberosa
      †Mixocetus – type locality for genus
      †Mixocetus elysius – type locality for species
      Modiolatus
      †Modiolatus rectus
      Modiolus
      †Modiolus capax – or unidentified comparable form
      †Modiolus carpenteri
      †Modiolus multiradiatus
      †Modiolus ornatus
      †Modiolus veronensis
      †Modiolus ynezianus
      Modulus
      †Modulus unidens
      †Mojavemys
      †Mojavemys alexandrae – type locality for species
      †Mojavemys lophatus
      †Mojavemys wilsoni
      †Molopophorus
      †Molopophorus aequicostatus – or unidentified comparable form
      †Molopophorus antiquatus
      †Molopophorus biplicatus
      †Molopophorus californicus – type locality for species
      †Molopophorus dalli
      †Molopophorus tejonensis
      Moniliopsis
      †Moniliopsis incisa
      Monoplex
      †Monoplex amictus
      †Monosaulax
      †Monosaulax pansus
      Montipora
      †Mookomys
      †Mookomys formicarum
      †Mookomys subtilis
      Mopalia
      †Mopalia acuta
      †Mopalia ciliata
      †Mopalia lignosa – or unidentified comparable form
      †Moropus
      Morula
      †Morula lugubris
      Morus – or unidentified comparable form
      Morus
      †Morus humeralis – type locality for species
      †Morus lompocanus – type locality for species
      †Morus magnus – type locality for species
      †Morus recentior – type locality for species
      †Morus reyana – type locality for species
      †Morus reyma
      †Morus reyna
      †Morus vagabundus – type locality for species
      Mulinia
      †Mulinia pallida
      Murex – or unidentified related form
      †Murex mansfieldi – or unidentified related form
      Musculus
      Mustela
      †Mustela americana – type locality for species
      †Mustela frenata
      †Mya
      †Mya dickersoni
      †Mya fujiei
      †Mya truncata
      †Myadesma
      †Myadesma pacifica
      Myctophum
      Myliobatis
      †Myliobatis californicus
      †Mylohyus
      †Mylohyus fossilis
      †Mylopharodon
      †Mylopharodon conocephalus
      Mysella
      †Mysella aleutica
      Mytilimeria
      Mytilimeria nuttalli
      Mytilus
      †Mytilus arnoldi
      †Mytilus californianus
      †Mytilus edulis
      †Mytilus expansus
      †Mytilus loeli
      †Mytilus mathewsoni
      †Mytilus mathewsonii
      †Mytilus middendorffi
      †Mytonolagus
      †Mytonomys
      †Mytonomys burkei – type locality for species
      †Mytonomys mytonensis – or unidentified comparable form
      Myurella
      †Myurella martini


      N



      †Nannippus
      †Nannocetus – type locality for genus
      †Nannocetus eremus – type locality for species
      †Nannolithax – type locality for genus
      †Nannolithax gracilis – type locality for species
      †Nanotragulus
      †Nanotragulus ordinatus – tentative report
      Narona
      †Narona clavatula
      Nassa
      †Nassa cerritensis
      †Nassa delosi
      †Nassa fossata
      †Nassa mendica
      †Nassa perpinguis
      †Nassa tegula
      Nassarius
      †Nassarius californianus
      †Nassarius cerritensis
      †Nassarius fossatus
      †Nassarius grammatus
      †Nassarius hamlini
      †Nassarius inquus
      †Nassarius mendicus
      †Nassarius perpinguis
      †Nassarius stocki
      †Nassarius tegula
      †Nassarius whitneyi
      Natica
      †Natica lewisi – or unidentified related form
      †Natica recluziana
      †Natica uvasana
      Naticarius
      †Naticarius unifasciata
      †Navahoceros
      Nectandra
      †Nectandra presanguinea
      Negaprion
      †Negaprion antiquus
      †Negaprion elongata – or unidentified comparable form
      †Nekrolagus
      †Nelumbium
      †Nelumbium lacunosum – type locality for species
      Nemocardium
      †Nemocardium centifilosum
      †Nemocardium linteum
      †Neobernaya
      †Neobernaya fernandoensis
      †Neobernaya spadicea
      †Neoculicoides – type locality for genus
      †Neoculicoides jeanneae – type locality for species
      †Neogyps
      †Neogyps errans
      †Neohipparion
      †Neohipparion eurystyle
      †Neohipparion gidleyi – type locality for species
      †Neohipparion leptode
      †Neohipparion trampasense
      †Neoliotomus – or unidentified comparable form
      †Neolitsea
      †Neolitsea lata – type locality for species
      †Neoparadoxia – type locality for genus
      †Neoparadoxia cecilialina – type locality for species
      †Neoparadoxia repenningi – type locality for species
      Neophrontops
      †Neophrontops americanus
      †Neoplagiaulax
      Neotamias
      †Neotamias senex
      †Neotherium – type locality for genus
      †Neotherium mirum – type locality for species
      Neotoma
      †Neotoma cinerea – type locality for species
      †Neotoma fossilis
      †Neotoma fuscipes
      †Neotoma lepida
      †Neotoma quadriplicata
      †Neotoma sawrockensis
      †Neotoma taylori
      Neptunea
      †Neptunea andersoni
      †Neptunea eurekaensis
      †Neptunea lawsoni
      †Neptunea lirata
      †Neptunea mucronata
      †Neptunea pulchra
      †Neptunea scotiaensis
      †Neptunea tabiilata – or unidentified comparable form
      †Neptunea tabulata
      Nerita
      †Nerita beali – tentative report
      Neritina
      †Neritina picta
      †Nerium
      †Nerium hinoidea – type locality for species
      †Nerterogeomys
      †Nerterogeomys anzensis
      †Nerterogeomys garbanii
      Neverita
      †Neverita alta
      †Neverita callosa
      †Neverita globosa
      †Neverita reclusiana
      †Neverita reclusianus
      †Neverita recluziana
      †Neverita recluzianus
      †Neverita secta – or unidentified comparable form
      †Neverita thomsonae
      Nicrophorus
      †Nicrophorus guttula
      †Nicrophorus marginatus – type locality for species
      †Nicrophorus nigrita
      †Nimravides
      †Nimravides thinobates
      †Nimravus
      Niso – tentative report
      †Niso antiselli
      †Nitzschia
      †Nitzschia reinholdi
      †Nitzschia romana
      Nodipecten
      †Nodipecten cerrosensis
      †Nodipecten estrellanus
      †Nodipecten subnodosus
      Nodogenerina
      †Nodogenerina adolphina
      †Nodogenerina advena
      †Nodogenerina sanctaecrucis
      †Nodogenerina wegemanni
      Nodosaria
      †Nodosaria holserica
      †Nodosaria longiscata
      †Nodosaria pyrula
      Nonion
      †Nonion incisum
      †Nonomys
      †Nonomys gutzleri – type locality for species
      Norrisia
      †Norrisia norrisii
      †Nothroptheriops
      †Nothroptheriops shastense – or unidentified comparable form
      †Nothrotheriops
      †Nothrotheriops texanus
      †Nothrotherium
      †Nothrotherium shastense – type locality for species
      Notiosorex
      †Notiosorex crawfordi
      †Notiosorex jacksoni
      Notoacmea
      †Notoacmea inessa
      Notorhynchus
      †Nototamias
      Nucella
      †Nucella elsmerensis
      †Nucella emarginata
      †Nucella lamellosa
      †Nucella lima
      †Nucella spirata
      †Nucella trancosana
      Nucula
      †Nucula exigua
      †Nucula gabbiana
      †Nucula washingtonensis
      Nuculana
      †Nuculana gabbi – or unidentified comparable form
      †Nuculana ochsneri
      †Nuculana ramonensis
      Numenius
      †Numenius phaeopus
      Nutricola
      †Nutricola cymata
      †Nutricola ovalis
      †Nutricola salmonea
      †Nutricola tantilla
      Nuttallia
      †Nuttallia nuttallii
      †Nyctitherium – or unidentified comparable form
      Nyctoporis
      †Nyctoporis carinata
      †Nyssa
      †Nyssa californica
      †Nyssa copeana


      O



      †Ocajila – or unidentified comparable form
      Oceanodroma
      †Oceanodroma furcata
      †Oceanodroma homochroa
      †Oceanodroma hubbsi – type locality for species
      †Ocenbra
      †Ocenbra topangensis – or unidentified comparable form
      Ocenebra
      †Ocenebra barbarensis – or unidentified comparable form
      †Ocenebra circumtexta
      †Ocenebra foveolata
      †Ocenebra interfossa
      †Ocenebra lurida
      †Ocenebra poulsoni
      †Ocenebra tenuisculpta
      †Ocenebra topangensis
      Ocotea
      †Ocotea ovoidea
      †Ocotea perseaformis
      †Ocystias
      †Ocystias sagitta
      †Odaxosaurus
      Odobenus
      †Odobenus rosmarus
      Odocoileus
      †Odocoileus hemionus
      †Odocoileus virginianus – or unidentified comparable form
      Odontaspis
      †Odontaspis ferox
      †Odontogryphaea – tentative report
      †Odontogryphaea haleyi
      Odostomia
      †Odostomia avellana
      †Odostomia beringi – or unidentified comparable form
      †Odostomia californica – or unidentified comparable form
      †Odostomia callimene – or unidentified related form
      †Odostomia columbiana – or unidentified comparable form
      †Odostomia diaboli
      †Odostomia donilla
      †Odostomia eugena
      †Odostomia farallonensis
      †Odostomia fetella
      †Odostomia gravida
      †Odostomia helena
      †Odostomia minutissima – or unidentified comparable form
      †Odostomia nemo
      †Odostomia nota
      †Odostomia stephensae
      †Odostomia tacomoensis
      †Odostomia tenuisculpta – or unidentified comparable form
      †Oedolithax – type locality for genus
      †Oedolithax mira – type locality for species
      Oenopota
      †Oenopota fidicula
      †Oenopota tabulata
      Ogmodontomys
      †Ogmodontomys sawrockensis
      †Olequahia
      †Olequahia domenginica
      †Olequahia lorenzana
      †Oligoryctes
      Oliva
      †Oliva californica
      †Oliva meganosensis – type locality for species
      †Oliva spicata
      Olivella
      †Olivella baetica
      †Olivella biplicata
      †Olivella gracilis
      †Olivella mathewsoni
      †Olivella mathewsonii
      †Olivella pedroana
      †Olivella santana – type locality for species
      †Omomys
      †Omomys carteri – or unidentified comparable form
      Oncorhynchus
      †Oncorhynchus rastrosus
      Ondatra
      †Ondatra idahoensis
      †Ondatra minor
      Oneirodes
      Onthophagus
      †Onthophagus everestae – type locality for species
      Onychomys
      †Onychomys gidleyi
      †Onychomys torridus
      Ophiodermella
      †Ophiodermella graciosana
      †Ophiodermella inermis
      †Ophiomys
      †Ophiomys parvus
      †Opisima – tentative report
      †Opisima pacifica – or unidentified comparable form
      †Opisthonema
      †Opisthonema palosverdensis – type locality for species
      Oreamnos
      †Oreamnos americanus
      Oreortyx
      †Oreortyx picta
      Orthemis
      †Orthemis ferruginea
      Orthodon
      †Osbornodon
      †Osbornodon fricki
      †Osteodontornis – type locality for genus
      †Osteodontornis orri – type locality for species
      Ostrea
      †Ostrea angelica
      †Ostrea atwoodii
      †Ostrea bourgeosi
      †Ostrea conchaphila
      †Ostrea hertleini
      †Ostrea lincolnensis – or unidentified related form
      †Ostrea lurida
      †Ostrea subtitan
      †Ostrea weaveri
      †Otodus
      †Otodus angustidens
      †Otodus megalodon
      †Ottoceros
      †Ottoceros peacevalleyensis – type locality for species
      Otus
      †Otus asio
      †Ourayia
      Ovibos
      †Ovibos moschatus
      Ovis
      †Ovis canadensis
      †Oxyrhina
      †Oxyrhina crassa
      †Oxyura
      †Oxyura jamaicensis
      †Ozymandias – type locality for genus
      †Ozymandias gilberti – type locality for species


      P



      †Pachycrommium
      †Pachycrommium clarki
      †Paciculus
      †Pacifichelys
      †Pacifichelys hutchisoni – type locality for species
      †Pacipecten
      †Pacipecten discus
      †Pacipecten pabloensis – or unidentified comparable form
      †Palaeolagus
      †Palaeolama
      †Palaeolama mirifica – or unidentified related form
      †Palaeopsammia
      †Palaeopsammia zitteli
      †Palaeoxantusia
      †Palaeoxantusia allisoni
      †Palaeoxantusia kyrentos
      †Paleoparadoxia
      †Paleoparadoxia tabatai
      †Paleosula – type locality for genus
      †Paleosula stocktoni – type locality for species
      Palpomyia – type locality for genus
      †Palpomyia freyi – type locality for species
      †Palpomyia multispinosa – type locality for species
      †Palpomyia ryshkoffi – type locality for species
      †Palpomyia shilo – type locality for species
      Pandora
      †Pandora punctata
      †Pandora wardiana
      †Panolax
      †Panolax sanctaefidei
      Panomya
      †Panomya ampla
      Panopea
      †Panopea abrupta
      †Panopea estrellana – or unidentified related form
      †Panopea ramonensis
      †Panopea smithii
      †Panopea tenuis
      Panthera
      †Panthera leo
      †Panthera onca – or unidentified comparable form
      †Parabalaenoptera – type locality for genus
      †Parabalaenoptera baulinensis – type locality for species
      Paraconcavus
      †Paraconcavus margaritanus
      †Paraconcavus pacificus
      †Paracontogenys
      †Paracontogenys estesi
      †Paracosoryx
      †Paracosoryx alticornis
      †Paracosoryx furlongi
      †Paraculicoides – type locality for genus
      †Paraculicoides rouseae – type locality for species
      Paracyathus
      †Paracyathus pedroensis – type locality for species
      †Paracyathus stearnsii
      †Paracynarctus
      †Paracynarctus kelloggi
      †Paradjidaumo
      †Paradjidaumo reynoldsi – type locality for species
      †Paradomnina
      †Paradomnina relictus – or unidentified comparable form
      †Parafundulus
      †Parafundulus erdisi
      †Parahippus
      †Parahippus maxsoni – type locality for species
      †Parahippus pawniensis
      †Parahyus
      †Paralichthyes
      Paralichthys – type locality for genus
      †Paralichthys antiquus
      †Paramerychyus
      †Paramerychyus harrisonensis
      †Paramerychyus relictus
      †Paramiolabis
      †Paramiolabis minutus – type locality for species
      †Paramiolabis singularis – or unidentified comparable form
      †Paramiolabis taylori
      †Paramiolabis tenuis
      †Paramylodon
      †Paramylodon harlani
      †Paramys
      †Paramys compressidens – or unidentified comparable form
      †Paramys leptodus – or unidentified comparable form
      †Parapavo
      †Parapavo californica
      †Parapavo californicus
      †Parapliohippus
      †Parapliohippus carrizoensis – type locality for species
      †Parapontoporia
      †Parapontoporia sternbergi – type locality for species
      †Parapontoporia wilsoni – type locality for species
      †Parasauromalus
      †Parasauromalus olseni
      Paraseraphs
      †Paraseraphs erraticus
      †Parastylotermes
      †Parastylotermes calico – type locality for species
      †Parastylotermes frazieri – type locality for species
      †Paratomarctus
      †Paratomarctus temerarius
      †Pareumys
      †Pareumys grangeri
      †Pareumys milleri
      †Parietobalaena
      †Parietobalaena securis – type locality for species
      †Paromomys
      †Paromomys depressidens
      †Paronychomys
      †Parribacus
      †Parribacus caesius – type locality for species
      Parvamussium
      †Parvicornus – type locality for genus
      †Parvicornus occidentalis – type locality for species
      Parvilucina
      †Parvilucina approximata
      †Parvilucina tenuisculpta
      †Parvisipho – tentative report
      †Parvisipho meganosensis – type locality for species
      Patelloida
      †Patelloida tejonensis
      †Patelloida triquetrus
      Patinopecten
      †Patinopecten caurinus
      †Patinopecten coosensis
      †Patinopecten healeyi
      †Patinopecten healyi
      †Patinopecten lohri
      †Patinopecten propatulus
      †Patriolestes
      †Patriolestes novaceki – type locality for species
      †Pauromys
      †Pauromys lillegraveni – type locality for species
      †Pecoripeda
      Pecten
      †Pecten bellus
      †Pecten bowersi
      †Pecten dickersoni
      †Pecten estrellanis
      †Pecten magnolia
      †Pecten nevadensis
      †Pecten perrini
      †Pecten sespeensis
      †Pedalion
      †Pedalion panzana – or unidentified comparable form
      †Pediomeryx
      †Pediomeryx hemphillensis
      †Pedipes
      †Pedipes liratus
      †Pedipes unisulcatus
      †Pelagiarctos – type locality for genus
      †Pelagiarctos thomasi – type locality for species
      †Pelagornis
      Pelecanus
      †Pelecanus erythrorhynchus – or unidentified comparable form
      †Pelecanus occidentalis
      †Peltosaurus
      †Peltosaurus macrodon – type locality for species
      Penitella
      †Penitella penita
      †Peraceras
      †Peraceras superciliosum
      †Peradectes
      †Peradectes californicus
      †Periaster
      Pericosmus
      †Peridiomys
      †Peridiomys oregonensis – or unidentified comparable form
      Periglypta
      †Periglypta multicostata
      Periploma
      †Periploma planiuscula
      †Periploma stewartvillensis – type locality for species
      †Peripolocetus – type locality for genus
      †Peripolocetus vexillifer – type locality for species
      †Perissitys
      †Perissitys stewarti
      †Perissolax
      †Perissolax blakei
      †Perissolax tricarinatus
      †Perognathoides
      †Perognathoides eurekensis
      Perognathus
      †Perognathus furlongi
      †Perognathus minutus
      Peromyscus
      †Peromyscus baumgartneri
      †Peromyscus boylei
      †Peromyscus complexus – type locality for species
      †Peromyscus dentalis
      †Peromyscus hagermanensis
      †Peromyscus irvingtonensis – type locality for species
      †Peromyscus maximus – type locality for species
      †Peromyscus truei – or unidentified comparable form
      †Perse
      †Perse lincolnensis
      Persea
      †Persea coalingensis
      †Persea praelingue
      †Persea pseudocarolinensis
      Persististrombus
      †Persististrombus obliteratus – type locality for species
      †Petauristodon
      †Petauristodon jamesi
      †Petauristodon mathewsi
      †Petauristodon minimus
      †Petauristodon uphami
      Petricola
      †Petricola carditoides
      †Petricola cognata
      †Petricola denticulata
      †Petricola parallela
      Petrophyllia
      †Petrophyllia clarki
      †Petrophyllia weaveri
      †Pewelagus
      †Pewelagus dawsonae
      Phacoides
      †Phacoides actulineatus
      †Phacoides sactaecrucis – tentative report
      Phalacrocorax
      †Phalacrocorax auritus
      †Phalacrocorax femoralis – type locality for species
      †Phalacrocorax kennelli – type locality for species
      †Phalacrocorax pelagicus
      †Phalacrocorax penicillatus
      †Phalacrocorax penincillatus
      †Phalacrocorax penincullatus
      †Phalacrocorax rogersi – type locality for species
      Phalaropus
      †Phalaropus fulicaria
      †Phalaropus lobatus
      †Phanaeus
      †Phanaeus labreae – type locality for species
      †Phelosaccomys
      †Phelosaccomys shotwelli – type locality for species
      †Phenacolemur
      †Phenacolemur shifrae
      †Phlaocyon
      †Phlaocyon taylori
      †Phlepsius
      †Phlepsius weissmanae – type locality for species
      Phloeodes
      †Phloeodes diabolicus
      †Phloeodes plicatus
      †Phoberogale
      †Phoberogale shareri – type locality for species
      Phoca
      †Phoca vitulina – or unidentified comparable form
      Phocoena – or unidentified comparable form
      †Phoebastria
      †Phoebastria albatrus – type locality for species
      †Phoebastria anglica – type locality for species
      Phoenicopterus – or unidentified comparable form
      Pholadidea
      Pholadomya
      †Pholadomya mounti
      †Pholadomya nasuta
      Pholas
      †Pholas gabbi
      Phos
      †Phos blakianus – or unidentified comparable form
      †Phos dumbleanus
      †Photinia
      †Photinia miocenica
      Phrynosoma
      †Phyllites
      †Phyllites californica
      †Phyllites coalingensis
      †Phyllites cordiaefolia – type locality for species
      †Phyllites daturaefolia – type locality for species
      †Phyllites domenginensis
      †Phyllites ellipticus
      †Phyllites laurinea
      †Phyllites temblorensis
      Phyllonotus
      †Phyllonotus hippocastanum
      †Phyllonotus radix
      Physa
      †Physiculua
      Phytocrene
      †Phytocrene sordida
      Picea
      †Picea lahontense
      †Picea magna
      †Picea sonomensis
      †Pimelometopodon
      †Pimelometopodon pulchrum – or unidentified comparable form
      Pimelometopon
      †Pimelometopon pulchrum
      Pinna
      †Pinna alamedaensis
      †Pinna latrania – type locality for species
      †Pinna lewisi
      †Pinna llajasensis – type locality for species
      †Pinna mendenhalli – type locality for species
      †Pinnarctidion – type locality for genus
      †Pinnarctidion bishopi – type locality for species
      Pinus
      †Pinus carmelensis – type locality for species
      †Pinus muricata
      †Pinus prelambertiana – or unidentified comparable form
      †Pinus radiata
      †Pinus sturgisii
      †Pinus temblorensis
      Piranga
      †Piranga ludoviciana
      †Piscolithax
      Pitar
      †Pitar avenalensis – tentative report
      †Pitar behri
      †Pitar california – or unidentified comparable form
      †Pitar californiana
      †Pitar campi – or unidentified comparable form
      †Pitar dalli
      †Pitar joaquinensis
      †Pitar newcombianus
      †Pitar quadratus
      †Pitar stantoni – or unidentified comparable form
      †Pitar tejonensis – or unidentified comparable form
      †Pitar uvasana
      †Pitar uvasanus
      †Pithanodelphis
      †Pithanotaria – type locality for genus
      †Pithanotaria starri – type locality for species
      Pituophis
      †Pituophis melanoleucus
      Pitymys
      †Pitymys mcnowni – or unidentified comparable form
      Placunanomia
      †Placunanomia granti
      Planularia
      †Planularia caribbeana
      †Platanophyllum
      †Platanophyllum angustiloba
      †Platanophyllum whitenyi
      †Platanophyllum whitneyi
      Platanus
      †Platanus angustilobus – type locality for species
      †Platanus appendiculata
      †Platanus coloradensis
      †Platanus dissecta – or unidentified comparable form
      †Platanus paucidentata
      †Platygonus
      †Platygonus bicalcaratus
      †Platygonus vetus
      †Platylithax – type locality for genus
      †Platylithax robusta – type locality for species
      Platynus
      †Platynus funebris – or unidentified comparable form
      Platyodon
      †Platyodon cancellata
      †Platyodon cancellatus
      †Platyoptera
      †Platyoptera pacifica
      Platytrochus
      †Platytrochus diabloensis – type locality for species
      †Platytrochus merriami – type locality for species
      †Plectina
      †Plectina garzaensis
      †Plectina ruthenica – or unidentified comparable form
      Plectofrondicularia
      †Plectofrondicularia kerni
      †Plectofrondicularia miocenica
      †Plectofrondicularia packardi
      †Plectofrondicularia trinitatensis
      †Plectofrondicularia vaughani
      †Plectrites
      †Plectrites classeni
      Plegadis
      †Plegadis chihi
      †Pleiolama
      †Pleiolama vera
      †Plesiadapis
      †Plesiadapis anceps – or unidentified comparable form
      †Plesiadapis churchilli – or unidentified comparable form
      †Plesiogulo
      †Plesiogulo lindsayi
      †Plesiogulo marshalli
      Pleurofusia
      †Pleurofusia fresnoensis
      †Pleurofusia lindavistaensis – or unidentified related form
      †Pleuroncodes
      †Pleuronichthys
      †Pleuronichthys veliger
      †Pliauchenia
      †Pliauchenia magnifontis – or unidentified comparable form
      †Plioceros
      †Pliocyon
      †Pliocyon medius
      †Pliohippus
      †Pliohippus coalingensis – type locality for species
      †Pliohippus fairbanksi – type locality for species
      †Pliohippus spectans – tentative report
      †Pliometanastes
      †Pliometanastes protistus
      †Plionarctos
      †Plionarctos edensis – type locality for species
      †Plionictis
      †Plionictis ogygia – or unidentified comparable form
      †Pliopedia – type locality for genus
      †Pliopedia pacifica – type locality for species
      †Pliotaxidea
      †Pliotaxidea garberi – type locality for species
      †Pliotomodon
      †Pliotomodon primitivus – type locality for species
      †Plithocyon
      †Plithocyon barstowensis
      †Plotopterum – type locality for genus
      †Plotopterum joaquinensis – type locality for species
      Pluvialis
      †Pluvialis squatarola
      Pneumatophorus
      †Pneumatophorus grex – or unidentified comparable form
      †Poabromylus – tentative report
      †Poabromylus robustus
      Pocillopora
      Podiceps
      †Podiceps arndti
      †Podiceps auritus
      †Podiceps discors
      †Podiceps nigricolis
      †Podiceps parvus
      †Podiceps subparvus
      Podilymbus
      †Podilymbus podiceps
      Pododesmus
      †Pododesmus macrochisma
      †Poebrodon
      †Poebrodon californicus – type locality for species
      †Pogonodon
      †Pogonodon brachyops
      Polinices
      †Polinices – type locality for species informal
      †Polinices draconis
      †Polinices horni – or unidentified comparable form
      †Polinices hornii
      †Polinices lewisii
      †Polinices pinyonensis – or unidentified comparable form
      †Polinices recluzianys
      †Polinices rectus – or unidentified related form
      †Polinices susanaensis
      †Polinices uber
      †Polinices washingtonensis – or unidentified comparable form
      Polydora
      Polymesoda
      †Polymesoda tenuis – or unidentified comparable form
      Polystira
      †Polystira barretti
      †Pongamia
      †Pongamia ovata – type locality for species
      †Pontolis – or unidentified comparable form
      †Pontolis magnus
      Populus
      †Populus alexanderii
      †Populus bonhamii
      †Populus coalingensis
      †Populus garberii
      Porichthys
      †Porichthys myriaster
      †Porichthys notatus
      Porites
      †Porites carrizensis – type locality for species
      †Portunites
      †Portunites insculpta
      †Potamides
      †Potamides carbonica – or unidentified comparable form
      †Potamides sespeensis
      †Praemancalla – type locality for genus
      †Praemancalla lagunensis – type locality for species
      †Presbychen – type locality for genus
      †Presbychen abavus – type locality for species
      †Presbymys
      †Presbymys lophatus – type locality for species
      Priene
      †Priene amoldi
      †Priene oregonensis
      †Priene scotiaensis
      Prionace
      †Prionace glauca
      †Priscoficus
      †Priscoficus caudata
      †Priscofusus
      †Priscofusus carlsoni – tentative report
      †Priscofusus hecoxi
      †Priscofusus lincolnensis
      †Priscofusus robustus
      †Pristichampsus
      Pristiophorus
      †Pristophorus
      †Proboscipeda
      †Procamelus
      †Procamelus grandis – or unidentified comparable form
      †Procymophyes – type locality for genus
      †Procymophyes lithax – type locality for species
      †Procynodictis
      †Procynodictis progressus
      Procyon
      †Procyon lotor
      †Procyon psora
      †Prodipodomys
      †Prodipodomys idahoensis
      †Prodipodomys riversidensis – type locality for species
      †Prodipodomys timoteoensis – type locality for species
      †Prodipoides
      †Prodipoides lecontei – type locality for species
      Progabbia
      †Proharrymys – or unidentified comparable form
      †Proheteromys
      †Proheteromys maximus
      †Proheteromys sulculus
      †Promartes
      †Pronotolagus
      †Pronotolagus apachensis – or unidentified comparable form
      †Protadjidaumo
      †Protanthias – type locality for genus
      †Protanthias fossilis – type locality for species
      †Protepicyon
      †Protepicyon raki – type locality for species
      †Proterixoides
      †Proterixoides davisi – type locality for species
      †Prothomomys
      †Prothomomys warrenensis – type locality for species
      †Protitanops
      †Protitanops curryi – type locality for species
      †Protoarrenurus
      †Protoarrenurus convergens – type locality for species
      †Protochlorotettix – type locality for genus
      †Protochlorotettix calico – type locality for species
      †Protohepialus – type locality for genus
      †Protohepialus comstocki – type locality for species
      †Protolabis
      †Protolabis barstowensis – type locality for species
      †Protomarctus
      †Protomarctus optatus
      †Protoreodon
      †Protoreodon pacificus – type locality for species
      †Protoreodon parvus – or unidentified comparable form
      †Protoreodon pumilus
      †Protoreodon transmontanus
      †Protoreodon walshi
      †Protosciurus
      †Protosciurus tecuyensis
      †Protosegestes – report made of unidentified related form or using admittedly obsolete nomenclature
      †Protosegestes lloydi – type locality for species
      †Protospermophilus
      †Protospermophilus quatalensis – type locality for species
      †Protostrix
      †Protostrix californiensis – type locality for species
      †Protosurcula – tentative report
      Protothaca
      †Protothaca staleyi
      †Protothore – type locality for genus
      †Protothore explicata – type locality for species
      †Protylopus
      †Protylopus pearsonensis – type locality for species
      †Protylopus petersoni – or unidentified comparable form
      †Protylopus robustus – type locality for species
      †Protylopus stocki – type locality for species
      Proximitra – tentative report
      †Proximitra cretacea
      Prunus
      †Prunus turlockensis
      Psammacoma
      †Psammacoma acolasta
      †Psammacoma arctata
      †Psammacoma yoldiformis
      Psammotreta
      †Psammotreta dombei
      †Psammotreta obesa
      †Psammotreta rostellata
      †Psammotreta viridotincta
      †Psephophorus
      †Psephophorus calvertensis – or unidentified comparable form
      †Pseudaelurus
      †Pseudaelurus intrepidus
      †Pseudaelurus marshi
      †Pseudoblastomeryx
      †Pseudoblastomeryx advena
      Pseudochama
      †Pseudochama exogyra
      †Pseudoglandulina
      †Pseudoglandulina conica
      †Pseudoglandulina ovata
      †Pseudoglandulina turbinata
      Pseudoliva
      †Pseudoliva dilleri
      †Pseudoliva inornata – or unidentified comparable form
      Pseudomelatoma
      †Pseudomelatoma penicillata
      †Pseudoparablastomeryx
      †Pseudoparablastomeryx scotti – or unidentified comparable form
      †Pseudoparella
      †Pseudoperrisolax
      †Pseudoperrisolax blakei
      †Pseudoseriola – type locality for genus
      †Pseudoseriola gillilandi – type locality for species
      †Pseudotheridomys
      †Pseudotheridomys cuyamensis – type locality for species
      †Pseudotomus
      †Pseudotomus californicus
      †Pseudotomus littoralis – type locality for species
      †Pseudotsuga
      †Pseudotsuga sonomensis
      Pteria
      †Pteria berryi
      †Pteria hertleini
      †Pteria pellucida
      †Pteroplatea
      †Pteroplatea lapislutosa – type locality for species
      Pteropurpura
      †Pteropurpura festiva
      †Pteropurpura trialatus
      Pterostichus
      Pterynotus
      †Pterynotus petri
      †Pterynotus washingtonicus
      †Ptilodus
      Ptinus
      †Ptinus priminidi – type locality for species
      Ptychoramphus
      †Ptychoramphus aleuticus
      Puffinus
      †Puffinus barnesi – type locality for species
      †Puffinus calhouni – type locality for species
      †Puffinus diatomicus – type locality for species
      †Puffinus felthami – type locality for species
      †Puffinus gilmorei – type locality for species
      †Puffinus gresus
      †Puffinus grisesus
      †Puffinus griseus
      †Puffinus inceptor – type locality for species
      †Puffinus kanakoffi
      †Puffinus mitchelli – type locality for species
      †Puffinus opisthomelas
      †Puffinus priscus – type locality for species
      †Puffinus tenuirostris
      Pullenia
      †Pullenia eocenica
      †Pullenia quinqueloba
      †Puma
      †Puma concolor – type locality for species
      Puncturella
      †Puncturella galeata
      †Puncturella multistriata
      Pupillaria
      †Pupillaria optabilis
      †Pupillaria pupilla
      Purpura
      †Purpura barbarensis
      †Purpura festiva
      †Purpura lima
      †Purpura lurida
      †Purpura milicentana – type locality for species
      †Purpura nuttallii
      †Purpura poulsoni
      †Purpura topangensis
      Pusula
      †Pusula californiana
      †Pusula solandri
      Pycnodonte
      †Pycnodonte eldridgei
      †Pycnodonte heermanni
      †Pycnodonte pacifica – or unidentified comparable form
      †Pycnodonte stewarti – or unidentified related form
      Pyramidella
      †Pyramidella adamsi – or unidentified comparable form
      †Pyramidella mucronis
      †Pyramidella preblei
      Pyrene
      †Pyrene carinata


      Q



      †Quercophyllum
      †Quercophyllum platanoides – type locality for species
      Quercus
      †Quercus acorns
      †Quercus coalingensis
      †Quercus dispersa
      †Quercus distincta
      †Quercus domenginensis
      †Quercus douglasoides
      †Quercus eoxalapensis – type locality for species
      †Quercus hannibali
      †Quercus hannibalii
      †Quercus lakevillensis
      †Quercus merriami
      †Quercus nevadensis
      †Quercus pasadorii – type locality for species
      †Quercus pliopalmerii
      †Quercus pollardiana
      †Quercus pseudolyrata
      †Quercus remingtonii
      †Quercus sayana
      †Quercus simulata
      †Quercus temblorensis
      †Quercus wislizenoides


      R



      Raja
      †Rakomeryx
      †Rakomeryx sinclairi – type locality for species
      Rallus
      †Rallus limicola
      †Ramoceros
      †Ramoceros brevicornis – type locality for species
      †Rana
      †Ranellina
      †Ranellina pilsbry – or unidentified related form
      Raninoides
      †Raninoides slaki – type locality for species
      †Rapamys
      †Rapamys fricki – type locality for species
      Rapana
      †Rapana vaquerosensis
      †Rectoguembelina
      †Rectoguembelina trinitatensis – or unidentified comparable form
      Recurvirostra
      Reithrodontomys
      †Reithroparamys – or unidentified comparable form
      Reophax
      †Reophax pilulifer – or unidentified comparable form
      †Repomys
      †Repomys gustelyi – type locality for species
      †Repomys maxumi – type locality for species
      Reticulitermes
      †Reticulitermes laurae – type locality for species
      †Reticulitermes tibalis
      Reticutriton
      †Reticutriton elsmerensis
      †Retipirula
      †Retipirula crassitesta
      Retusa
      †Retusa carinata
      †Retusa culcitella
      †Retusa harpa
      †Retusa tantilla
      †Reynoldsomys
      †Reynoldsomys timoteoensis – type locality for species
      †Rhabdammina
      †Rhabdammina eocenica
      †Rhamnidium
      †Rhamnidium chaneyi
      †Rhamnus
      †Rhamnus calyptus
      †Rhamnus moragensis
      †Rhamnus plenus
      †Rhamnus precalifornica
      †Rhomarchus – type locality for genus
      †Rhomarchus ensiger – type locality for species
      †Rhomurus
      †Rhomurus fulcratus
      Rhus
      †Rhus diablana
      †Rhus mixta
      †Rhynchotherium
      †Rhynchotherium falconeri
      †Rhynconella – tentative report
      †Rhyssomatus
      †Rhyssomatus miocenae – type locality for species
      †Rhythmias
      †Rhythmias gaviotae – type locality for species
      †Rhythmias slarri
      Rimella
      †Rimella macilentus
      †Rimella supraplicata
      †Rimella supraplicatus
      Rissa
      †Rissa estesi – type locality for species
      †Rissa tridactyla
      Rissoina
      †Rissoina pleistocena
      †Robinia
      †Robinia californica
      Robulus
      †Robulus alatolimbatus
      †Robulus arcuatostriatus
      †Robulus clericii
      †Robulus clypeiformis – or unidentified comparable form
      †Robulus inornatus
      †Robulus insuetus
      †Robulus kincaidi
      †Robulus mayi
      †Robulus mexicanus
      †Robulus nikobarensis
      †Robulus propinquus
      †Robulus simplex
      †Robulus terryi – or unidentified comparable form
      †Robulus warmani
      †Robulus welchi
      †Rogenio
      †Rogenio bowersi
      †Rogenio solitudinis
      †Rogenio vanclevei – type locality for species
      †Rotularia
      †Rotularia tejonense
      †Russellagus


      S



      Sabal
      †Sabal miocenica
      †Sabalites
      †Sabalites californicus
      Saccella
      †Saccella alaeformis
      †Saccella gabbi
      †Saccella taphria
      Sagmatias
      †Sainguinolaria
      †Sainguinolaria toulai – or unidentified comparable form
      Salix
      †Salix boisiensis
      †Salix edenensis
      †Salix hesperia
      †Salix ionensis
      †Salix laevigatoides
      †Salix pelviga
      †Salix storeyana
      †Salix wildcatensis
      †Salumiphocaena
      †Salumiphocaena stocktoni – type locality for species
      †Saniwa
      †Saniwa ensidens – type locality for species
      †Sapindus
      †Sapindus oklahomensis
      Saracenaria – tentative report
      †Saracenaria acutiauricularis – or unidentified comparable form
      †Sarda
      †Sarda stockii – type locality for species
      Sassia
      †Sassia bilineata
      Saxidomus
      †Saxidomus gigantea
      †Saxidomus giganteus
      †Saxidomus nuttalli
      †Saxidomus vaquerosensis
      †Saxolucina
      †Scaldicetus
      †Scaldicetus grandis – or unidentified comparable form
      †Scalopoides
      Scapanus
      †Scapanus latimanus
      †Scapanus malatinus
      †Scapanus shultzi – type locality for species
      Scaphander
      †Scaphander costatus
      †Scaphander jugularis
      Scapharca
      †Scapharca obispoana
      Scaphinotus
      †Scaphinotus interruptus
      †Scaphohippus
      †Scaphohippus intermontanus – type locality for species
      †Scaphohippus sumani – type locality for species
      Sceloporus
      †Sceloporus occidentalis
      †Scenopagus
      †Scenopagus curtidens
      †Scenopagus priscus – or unidentified comparable form
      †Schaubeumys
      †Schedocardia – tentative report
      †Schistomerus – type locality for genus
      †Schistomerus californense – type locality for species
      Schizaster
      †Schizaster diabloensis
      †Schizaster lecontei
      †Schizaster martinezensis
      †Schizodontomys
      †Sciuravus
      †Sciuravus powayensis
      Sciurus
      Scomber
      †Scomber sanctaemonicae
      †Scomberesox
      †Scomberesox acutillus – type locality for species
      †Scomberesox edwardsi – type locality for species
      Scopelogadus
      †Scopelogadus mizolepis
      †Scutella
      †Scutella fairbanksi
      †Scutella fairbanski
      †Scutella merriami
      †Scutella norrisi
      †Scutella vaquerosensis
      †Scutellaster
      Scyliorhinus
      †Scymnorhinus
      †Scymnorhinus occidentalis
      Searlesia
      †Searlesia dira
      †Sebastavus – type locality for genus
      †Sebastavus vertebralis – type locality for species
      †Sebastodes
      †Sebastodes apostates
      †Sebastodes haroldi – type locality for species
      †Sebastodes ineziae
      †Sebastodes porteousi
      †Sebastodes porteus
      †Sebastodes rosae
      Seila
      †Seila montereyensis
      Semelangulus
      †Semelangulus tenuilirata
      Semele – tentative report
      Semele
      †Semele decisa
      †Semele diabloi
      †Semele morani
      †Semele packardi
      †Semele pulchra
      †Semele rubropicta
      †Semele venusta
      Semicassis
      †Semicassis louella – type locality for species
      †Semicassis tuberculiformis
      Semicossyphus
      †Semirostrum – type locality for genus
      †Semirostrum ceruttii – type locality for species
      Septifer
      †Septifer bifurcatus
      †Sequoiadendron
      †Sequoiadendron chaneyi
      †Serbelodon
      †Serbelodon burnhami
      Serica
      †Serica kanakoffi – type locality for species
      Seriola
      †Seriola sanctaebarbarae
      Seriphus
      †Seriphus politus
      Serpula
      †Serpula coreyi
      Serpulorbis
      †Serpulorbis llajasensis
      †Sespedectes
      †Sespedectes singularis – type locality for species
      †Sespedectes stocki
      †Sespemys
      †Sespemys thurstoni – type locality for species
      †Sespia
      †Sespia californica – type locality for species
      †Sespia nitida
      Siderastrea
      †Siderastrea clarki – type locality for species
      †Siderastrea mendenhalli – type locality for species
      Sigmodon
      †Sigmodon lindsayi
      †Sigmodon minor
      Sigmoilina – tentative report
      Siliqua
      †Siliqua lucida
      †Siliqua media – or unidentified comparable form
      †Siliqua patula – or unidentified related form
      †Simiacritomys
      †Simiacritomys whistleri – type locality for species
      †Simidectes
      †Simidectes medius – or unidentified comparable form
      †Simidectes merriami – type locality for species
      †Simimeryx
      †Simimeryx hudsoni – type locality for species
      †Simimys
      †Simimys landeri – type locality for species
      †Simimys simplex
      Simomactra
      †Simomactra dolabriformis
      †Simomactra falcata
      †Simomactra planulata
      †Sinomactra
      †Sinomactra falcata
      Sinum
      †Sinum debile – or unidentified comparable form
      †Sinum obliquum
      †Sinum scopulosum
      Siphonalia
      †Siphonalia andersoni
      †Siphonalia lineata
      †Siphonalia merriami
      †Siphonalia sutterensis – or unidentified comparable form
      Skenea
      †Skenea californica
      †Smilax
      †Smilax diforma
      †Smilax labidurommae
      †Smilax magna – or unidentified comparable form
      †Smilax remingtonii
      †Smilodon
      †Smilodon fatalis
      †Smilodon gracilis
      †Smilodonichthyes
      †Smilodonichthyes rastrosus
      †Smilodonichthys
      †Smilodonicthyes
      †Smilodonicthyes rastrosus
      †Smithites – type locality for genus
      †Smithites elegans – type locality for species
      Solariella
      †Solariella hartleyensis – type locality for species
      †Solariella peramabilis
      †Solariella walkeri – type locality for species
      Solemya
      †Solemya ventricosa
      Solen
      †Solen curtis – or unidentified comparable form
      †Solen rosaceus
      †Solen sicarius
      Solena
      †Solena conradi
      †Solena gravidus
      †Solena lorenzana
      †Solena parallelus – or unidentified comparable form
      †Solena perrini
      †Solena stantoni
      †Solena subverticala
      Solenastrea
      †Solenastrea fairbanksi
      Solenosteira
      †Solenosteira anomala
      Sorex
      †Sorex leahyi
      Spathipora
      Spermophilus
      †Spermophilus argonautus
      †Spermophilus beecheyi
      †Spermophilus lateralis
      †Sphaeroidina
      †Sphaeroidina gredalensis
      Sphenia – tentative report
      †Sphenia meganosensis – type locality for species
      †Sphenophalos – tentative report
      Sphyrna
      †Sphyrna aus
      †Sphyrna bus
      Spilogale
      †Spilogale putorius
      †Spirocrypta
      †Spirocrypta inornata
      †Spirocrypta pileum
      Spiroglyphus
      †Spiroglyphus lituella
      †Spiroglyphus tinajasensis
      Spiroloculina
      †Spiroloculina lamposa
      Spiroplectammina
      †Spiroplectammina coreyi – type locality for species
      †Spiroplectammina eocenica
      †Spiroplectammina kewi – type locality for species
      Spirotropis
      †Spirotropis bulimoides
      †Spirotropis perversa
      Spisula
      †Spisula coosensis
      †Spisula densatum – type locality for species
      †Spisula meganosensis – type locality for species
      †Spisula pabloensis
      †Spisula packardi
      †Spisula panzanum
      Spondylus
      †Spondylus bostrychites
      †Spondylus calcifer
      †Spondylus carlosensis
      †Spondylus perrini
      †Spondylus vaquerosensis
      Squalus
      †Squalus sericulus
      †Squalus serriculus
      Squatina
      †Squatina californica – or unidentified comparable form
      †Squatina claifornica
      †Squatina lerichei
      Squilla
      †Squilla laingae
      †Starrias – type locality for genus
      †Starrias ischyrus – type locality for species
      †Stegomastodon
      †Stegomastodon mirificus – or unidentified comparable form
      Stenella
      †Stenomylus
      †Stenomylus hitchcocki – or unidentified comparable form
      Stenoplax
      †Stenoplax conspicua
      †Stenoplax magdalenensis
      Stephanodiscus
      †Stephanodiscus asteroides
      †Stephanodiscus carconensis
      †Stephanodiscus excentricus
      †Stephanodiscus hantzchii
      †Stephanodiscus hantzschii
      †Stephanophyllia
      †Stephanophyllia californica – type locality for species
      †Stephanophyllia vacavillensis
      Stercorarius
      Sterna
      †Sterna neglecta
      †Sternbergia – type locality for genus
      †Sternbergia waitei – type locality for species
      Sthenictis
      †Stichocassidulina
      †Stichocassidulina thalmanni
      †Stictocarbo
      †Stictocarbo kumeyaay – type locality for species
      †Stockia – type locality for genus
      †Stockia powayensis – type locality for species
      †Stockoceros – or unidentified comparable form
      Stomias
      †Stomias affinis
      Stramonita
      †Stramonita biserialis
      †Stramonita canaliculata
      †Stramonita imperialis
      †Strepsidura
      †Strepsidura diabloensis – type locality for species
      †Strepsidura ficus – tentative report
      †Strepsidura lincolnensis
      †Streptochetus
      †Streptochetus californiana – type locality for species
      †Striatolamia
      †Striatolamia macrota
      †Striostrea
      †Striostrea freudenbergi
      Strioterebrum
      †Strioterebrum gausapatum
      †Strobilites
      †Strobilites temblorensis
      Strombiformis
      †Strombiformis raymondi
      Strombus
      †Strombus galeatus
      †Strombus gracilior
      †Strongyliscus – type locality for genus
      †Strongyliscus robustus – type locality for species
      Strongylocentrotus
      †Strongylodon
      †Strongylodon falcata
      Strophocardia
      †Strophocardia megastropha
      Sturnella
      †Sturnella negecta
      †Stylemys
      †Stylemys neglectus – type locality for species
      Subcancilla
      †Subcancilla sulcata
      †Subhyracodon
      †Subhyracodon kewi
      Succinea
      †Suggrunda
      Sula
      †Sula clarki – type locality for species
      †Sula pohli – type locality for species
      †Sula willetti – type locality for species
      †Sulcocypraea
      †Sulcocypraea moumieti
      Sulcoretusa
      †Sulcoretusa xystrum
      Surculites
      †Surculites aequilateralis
      †Surculites carpentaria
      †Surculites carpenteriana
      †Surculites carpenterianus
      †Surculites isoformis
      †Surculites keepi – or unidentified comparable form
      †Surculites mathewsoni
      †Surculites mathewsonii
      †Surculites remondi
      †Surculites remondii
      †Surculities – tentative report
      †Syllomus – or unidentified comparable form
      †Syllomus aegyptiacus
      Sylvilagus
      †Sylvilagus audubonii
      †Sylvilagus bachmani
      †Sylvilagus floridanus
      †Sylvilagus hibbardi
      Syncera
      †Syncera translucens
      Syngnathus
      †Syngnathus avus – type locality for species
      †Synthiboramphus
      †Synthiboramphus antiquus
      Synthliboramphus
      †Synthliboramphus antiquus
      †Synthliboramphus hypoleucas
      †Synthliboramphus hypoleucus
      †Synthliboramphus rineyi – type locality for species
      †Synthliboraramphus
      †Synthliboraramphus antiquus


      T



      †Tabernaemontana
      †Tabernaemontana chrysophylloides
      Tadorna
      †Tadorna tadorna
      Tagelus
      †Tagelus affinis
      †Tagelus californianus
      †Tagelus clarki – type locality for species
      †Tagelus subteres
      Tamias
      †Tamias ateles – type locality for species
      Tamiasciurus
      †Tamiasciurus hudsonicus
      Tamiosoma
      †Tamiosoma gregaria – type locality for species
      †Tanymykter
      †Tanymykter brachyodontus
      Tapirus
      †Tapirus californicus
      †Tapirus haysii
      †Tapirus merriami – type locality for species
      †Tapochoerus
      †Tapochoerus egressus – type locality for species
      †Tapochoerus mcmillini – type locality for species
      †Tapocyon
      †Tapocyon dawsonae – type locality for species
      †Tapocyon robustus
      †Tapomys
      †Tapomys tapensis
      Taranis
      †Taranis incultus
      Taricha
      Taxidea
      †Taxidea taxus
      Tayassu
      †Tayassu edensis
      Tegula
      †Tegula – type locality for species informal
      †Tegula aureotincta
      †Tegula eiseni
      †Tegula ligulata
      †Tejonia
      †Tejonia lajollaensis – or unidentified comparable form
      †Teleoceras
      †Teleoceras fossiger
      †Teleoceras hicksi
      †Teleoceras mediocronutum
      †Teleoceras meridianum
      †Teletaceras
      †Teletaceras mortivallis
      Tellina
      †Tellina bodegensis
      †Tellina cowlitzensis – or unidentified related form
      †Tellina emacerata
      †Tellina eugenia
      †Tellina idae
      †Tellina kewi
      †Tellina lebecki – or unidentified comparable form
      †Tellina martinezensis
      †Tellina meropsis
      †Tellina nuculoides
      †Tellina ocoyana
      †Tellina oldroydi
      †Tellina oregonensis
      †Tellina piercei
      †Tellina pittsburgensis
      †Tellina remondii
      †Tellina soledadensis – or unidentified comparable form
      †Tellina tehachapi
      †Tellina undulifera
      †Tellina vancouverensis – or unidentified comparable form
      †Tellina wilsoni
      †Temnocyon
      †Temnocyon subferox – or unidentified comparable form
      Tenagodus
      †Tenagodus californiensis
      †Tenudomys
      †Tenudomys bodei
      †Teratornis
      †Teratornis merriami
      Terebellum
      Terebra
      †Terebra albocincta
      †Terebra californica
      †Terebra danai
      †Terebra pedroana
      †Terebra protexta
      †Terebra santana – type locality for species
      Terebratalia
      †Terebratalia batequia – or unidentified related form
      Terebratula
      Terebratulina
      †Terebratulina tejonensis
      †Terebratulina tejonensis waringi
      Teredo
      Terminalia
      †Terminalia estamina
      †Tessarolax – tentative report
      †Tessarolax inconspicua
      Testudo
      †Testudoolithus – or unidentified comparable form
      †Tetraclaenodon
      †Tetraclaenodon puercensis
      Tetraclita
      †Tetrameryx
      †Tetrameryx irvingtonensis – type locality for species
      †Texoceros
      †Texoceros altidens – or unidentified comparable form
      †Texoceros edensis – type locality for species
      Thais
      †Thais carrizoensis
      †Thais lamellosa
      †Thais packi
      †Thalassoleon
      †Thalassoleon macnallyae – type locality for species
      †Thalassoleon mexicanus
      †Thamnasteria
      †Thamnasteria sinuata – type locality for species
      Thamnophis
      Thanatophilus
      †Thanatophilus lapponicus
      †Thelyphonus
      †Thelyphonus hadleyi – type locality for species
      Thomomys
      †Thomomys bottae
      †Thomomys gidleyi
      †Thomomys leucodon
      †Thomomys microdon – type locality for species
      †Thomomys monticola
      †Thouinopsis
      †Thouinopsis myricaefolia
      Thracia
      †Thracia pedroana
      †Thracia sorrentoensis – or unidentified comparable form
      †Thracia undulata
      Thunnus – type locality for genus
      †Thunnus starksi – type locality for species
      Thyasira
      †Thyasira folgeri
      †Thyrsites
      †Thyrsites kriegeri – type locality for species
      †Ticholeptus
      †Ticholeptus zygomaticus
      Timoclea
      †Timoclea picta
      Tinosaurus
      †Tinosaurus stenodon – or unidentified comparable form
      †Tiphyocetus – type locality for genus
      †Tiphyocetus temblorensis – type locality for species
      †Titanotylopus
      Tivela
      †Tivela diabloensis
      †Tivela gabbi
      †Tivela inezana
      †Tivela kelloggensis
      †Tivela stultorum
      †Tomarctus
      †Tomarctus brevirostris
      †Tomarctus hippophaga
      †Tomarctus hippophagus – or unidentified comparable form
      †Topangasquilla
      †Topangasquilla gravesi
      Torcula
      †Torcula inezana
      †Tornatellaea
      †Tornatellaea pinguis
      Totanus
      †Toxicodendron
      †Toxicodendron franciscana
      Toxopneustes
      †Toxopneustes roseus – or unidentified comparable form
      Toxostoma
      †Toxostoma redivivum
      Trachycardium
      †Trachycardium procerum
      †Trachycardium schencki
      †Trachycardium vaquerosensis
      †Trachycardium woodringi – type locality for species
      Transennella
      †Transennella joaquinensis – or unidentified comparable form
      Tremarctos
      †Tremarctos floridanus
      Tresus
      †Tresus capax
      †Tresus nuttallii
      †Tresus pajaroanus
      Triakis – tentative report
      Trichotropis
      †Trichotropis cancellata
      †Trichotropis insignis – or unidentified comparable form
      Tricolia
      †Tricolia compta
      †Tricolia pulloides
      †Trigonictis
      †Trigonictis macrodon
      Trionyx
      Triphora
      †Triphora pedroana
      Triplofusus
      †Triplofusus princeps
      †Triplopus – tentative report
      †Triplopus woodi – type locality for species
      Trochammina
      †Trochammina albertensis
      †Trochammina palea – type locality for species
      Trochita
      †Trochita filosa
      Trochocyathus
      †Trochocyathus crooki
      †Trochocyathus durhami – type locality for species
      †Trochocyathus grahami – type locality for species
      †Trochocyathus imperialis – type locality for species
      †Trochocyathus nomlandi – type locality for species
      †Trochocyathus stantoni – type locality for species
      †Trogomys
      †Trogomys rupinimenthae – type locality for species
      †Trogosus
      Trophon
      †Trophon carisaensis – or unidentified comparable form
      †Trophon eucymata
      †Trophon fleenerensis
      †Trophon gillulyi
      †Trophon hernensis – or unidentified comparable form
      †Trophon kernensis
      †Trophon multicostatus
      †Trophon pacificus
      †Trossulus – tentative report
      †Trossulus exoletus
      †Trypanotoma
      †Trypanotoma stocki
      †Tubulodon – or unidentified comparable form
      †Tubulostium – report made of unidentified related form or using admittedly obsolete nomenclature
      †Tubulostium tejonensis
      Tucetona
      †Tucetona multicostata
      Tudicla
      †Tudicla blakei
      †Tunita – type locality for genus
      †Tunita octavia – type locality for species
      †Turbinolia
      †Turbinolia capayasensis – type locality for species
      †Turbinolia clarki – type locality for species
      †Turbinolia dickersoni – type locality for species
      †Turbinolia imbulata
      †Turbinolia pusillanima – type locality for species
      Turbonilla
      †Turbonilla aepynota
      †Turbonilla almo
      †Turbonilla asser
      †Turbonilla canfieldi
      †Turbonilla carpenteri
      †Turbonilla keepi
      †Turbonilla laminata
      †Turbonilla lowei
      †Turbonilla marshensis – type locality for species
      †Turbonilla pedroana
      †Turbonilla pentalopha
      †Turbonilla raymondi
      †Turbonilla regina
      †Turbonilla stylina
      †Turbonilla tenuicula
      †Turbonilla torquata
      †Turbonilla tridentata
      †Turbonilla weldi
      Turcica
      †Turcica caffea
      Turdus
      †Turio
      †Turio culveri – type locality for species
      Turricula
      †Turricula cooperi
      †Turricula merriami
      †Turricula praeattenuata – or unidentified comparable form
      †Turricula waringi
      Turris
      †Turris fresnoensis
      †Turris perissolaxoides
      Turritella
      †Turritella andersoni
      †Turritella bosei
      †Turritella bulwaldana
      †Turritella buwaldana
      †Turritella carisaensis
      †Turritella carrisaensis
      †Turritella cooperi
      †Turritella hendoni
      †Turritella imperialis – type locality for species
      †Turritella inezana
      †Turritella inezani
      †Turritella infragranulata
      †Turritella lajollaensis – or unidentified comparable form
      †Turritella lawsoni
      †Turritella lorenzana – type locality for species
      †Turritella mariana
      †Turritella meganosensis – type locality for species
      †Turritella merriami
      †Turritella ocoyana
      †Turritella pachecoensis
      †Turritella reversa
      †Turritella stocki
      †Turritella temblorensis
      †Turritella uvasana
      †Turritella variata
      †Turritella wittichi
      Turritriton
      †Turritriton gibbosus
      Tursiops – or unidentified comparable form
      Typha
      †Typha lesquereuxii
      Typhis
      Tyto
      †Tyto alba


      U



      Uca
      †Uca hamlini
      †Uintasorex
      †Uintasorex montezumicus – type locality for species
      †Uintatherium
      Ulmus
      †Ulmus affinis
      †Umbellularia
      †Umbellularia salicifolia
      †Umpquaia
      Uria
      †Uria aalgae
      †Uria aalge
      †Uria algae
      †Uria brodkorbi – type locality for species
      †Uria paleohesperis – type locality for species
      †Uriscus
      †Uriscus californicus
      †Urobatis
      †Urobatis halleri
      †Urocitellus
      †Urocitellus beldingi
      Urocyon
      †Urocyon californicus
      †Urocyon cinereoargenteus
      †Urocyon galushai
      Urolophus
      †Urolophus halleri – tentative report
      Ursus
      †Ursus americanus
      †Ustatochoerus
      †Ustatochoerus major
      Uta
      †Uta stansburiana
      Uvigerina
      †Uvigerina garzaensis
      †Uvigerinella
      †Uvigerinella obesa


      V



      †Valenictus – type locality for genus
      †Valenictus chulavistensis – type locality for species
      †Valenictus imperialensis – type locality for species
      Valvulineria
      †Valvulineria californica
      †Valvulineria casitasensis
      †Valvulineria tumeyensis
      †Valvulineria wilcoxensis – or unidentified comparable form
      †Vanderhoofius
      †Vanderhoofius coalingensis
      †Vaquerosella
      †Vaquerosella andersoni
      †Vaquerosella coreyi
      †Vaquerosella durhami
      †Vaquerosella fairbanksi
      †Vaquerosella merriami
      †Vaquerosella vaquerosensis
      Vasum
      †Vasum caestum
      †Vauquelinia
      †Vauquelinia exigua – type locality for species
      †Velates
      †Velates californicus – type locality for species
      †Velates perversus
      Velutina
      †Velutina velutina
      Venericardia
      †Venericardia hornii
      †Venericardia mulleri
      †Venericardia planicosta
      †Venericardia sandiegoensis
      Venus
      †Venus purpurissata
      Vermicularia
      †Vermicularia ebunea
      Veromessor
      †Veromessor andrei
      †Vertipecten
      †Vertipecten alexclarki – type locality for species
      †Vertipecten nevadanus
      †Vertipecten perrini
      †Vertipecten yneziana – or unidentified related form
      †Viburnum
      †Viburnum variabilis
      †Vireo
      †Virgulina
      †Virgulina bramlettei
      †Virgulina bramlettrei
      †Virgulina dibollensis
      Vitrinella – tentative report
      Volsella
      †Volsella merriami
      †Volsella porterensis – or unidentified comparable form
      Voluta
      †Volutilithes
      †Volutilithes orocopiaensis – type locality for species
      Volutopsius
      †Volutopsius eurekaensis
      Volvulella
      †Volvulella cylindrica
      †Vouapa
      †Vouapa geminifolia – type locality for species
      Vulpes
      †Vulpes cascadensis
      †Vulpes kernensis – type locality for species
      †Vulpes stenognathus
      †Vulpes velox
      Vulvulina
      †Vulvulina curta


      W



      †Washakius
      †Washakius woodringi – type locality for species
      †Whitneyella
      †Whitneyella sinuata
      Williamia
      †Williamia peltoides
      †Wodnika
      †Wodnika ocoyae – type locality for species
      †Woodburnehyus – type locality for genus
      †Woodburnehyus grenaderae – type locality for species


      X



      Xenophora
      †Xenophora stocki
      †Xenophora zitteli
      †Xenothrissa – type locality for genus
      †Xenothrissa aphrasta – type locality for species
      †Xyne – type locality for genus
      †Xyne grex – type locality for species
      †Xyrinius – type locality for genus
      †Xyrinius houshi – type locality for species


      Y



      †Yaquius
      †Yaquius travisi
      †Yatkolamys
      Yoldia
      †Yoldia cooperii
      †Yoldia impressa
      †Yoldia mortuasusensis – type locality for species
      †Yoldia packardi – or unidentified comparable form
      †Yoldia scissurata
      †Yoldia tenuissima
      †Yumaceras – tentative report
      †Yumaceras ruminalis – type locality for species


      Z



      †Zachrysia
      †Zachrysia fraterna – type locality for species
      Zalophus
      †Zalophus californianus
      †Zamites
      †Zamites californica
      †Zanteclites – type locality for genus
      †Zanteclites hubbsi – type locality for species
      †Zaphleges
      †Zaphleges longurio
      †Zapteryx
      †Zapteryx californicus – or unidentified comparable form
      †Zarhinocetus
      †Zarhinocetus errabundus – type locality for species
      Zelkova
      †Zelkova oregoniana
      Zenaida
      †Zenaida macroura
      Zirfaea
      †Zirfaea dentata – or unidentified comparable form
      †Zirfaea pilsbryi
      Zonotrichia
      †Zonotrichia leucophrys
      †Zygolophodon


      References



      Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Archived from the original on 25 March 2022. Retrieved 17 December 2021.

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