- Source: Choptank Formation
The Choptank Formation is a geologic formation in Virginia and Maryland. It preserves fossils dating from the Miocene epoch of the Neogene period.
Fossils
The Choptank Formation is extremely fossiliferous. Some of the fossil species represented include the following:
= Sharks
=Otodus megalodon
Carcharodon hastalis
Isurus oxyrhincus
Carcharomodus escheri
Physogaleus contortus
Galeocerdo aduncus
Carcharhinus
Hemipristis serra
Squatina sp.
Notorhyncus cepedianus
Carcharias
Isurus retroflexus
Parotodus benedeni
Alopias vulpinus
Alopias grandis
Cetorhinus
Negaprion brevirostris
Rhizoprionodon
Sphryna laevissima
= Rays and Other Cartilaginous Fish
=Aetobatus arcuatus
Pteromyaleus sp.
Dasyatis rugosa
Dasyatis probsti
Pinthicus stenodon
= Fish
=Acipenseridae indet.
Opsanus sp.
Serranidae sp.
Pogonias sp.
Sciaenops sp.
Tautoga sp.
Acanthocybium cf. solandri
Thunnus sp.
Istiophorus cf. platypterus
Mola cf. pileata
Ariopsis aff. A. felis
Trisopterus sculptus
Micromesistius cognatus
Prionotus
= Cetaceans
=Aglaocetus sp.
Cetotherium sp.
Delphinodon sp.
Eurhinodelphis sp.
Macrokentriodon morani
Mesocetus
Parietobalaena
Orycterocetus
Pelocetus
= Pinnipeds
=Callophoca obscura
Leptophoca proxima
Prophoca sp.
= Crocodilians
=Thecachampsa antiquus
Thecachampsa sericodon
= Invertebrates
=Chesapecten nefrens
Chesacardium
Euspira heros
Mariacolpus octonnaria
Macrocallista marylandica
Stewartia anodonta
Marvacrassitella marylandica
Ecphora
Panopea
Albertella aberti
= Terrestrial Mammals
=Cynarctus wangi
Gomphotherium calvertensis
Hipparion cf. phosphorum
See also
List of fossiliferous stratigraphic units in Virginia
Paleontology in Virginia
Paleontology in Maryland
Calvert Cliffs State Park
List of fossiliferous stratigraphic units in Maryland
Chesapeake Group
References
Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.
Kata Kunci Pencarian:
- Choptank Formation
- Choptank people
- Calvert Formation
- Southern Maryland
- Macrokentriodon
- Beaverdam Formation (Delmarva)
- Chesapeake Group
- List of fossiliferous stratigraphic units in Maryland
- 2023 in paleomammalogy
- List of fossiliferous stratigraphic units in Virginia
