list of bilaterian orders
List of bilaterian orders GudangMovies21 Rebahinxxi LK21
Bilateria is an extremely diverse group of animals containing a vast majority of its species, largely due to the enormous amount of arthropods. This article is a list of orders contained within Bilateria separated by phylum. Groups that are not contained within an order are listed separately.
List
= Phylum Annelida
=Annelid taxonomy is currently under constant revisions due to the discovery that the class Polychaeta is paraphyletic. As such, a comprehensive list of orders is likely to change depending on what is accepted as valid.
Amphinomida
Class Sipuncula
Aspidosiphonida
Golfingiida
Phascolosomatida
Clade Pleistoannelida
Clade Errantia
Eunicida
Phyllodocida
Protodrilida
Myzostomida
Clade Sedentaria
Capitellida
Family Capitellidae
Subclass Echiura
Bonelliida
Echiurida
Opheliida
Orbiniida
Sabellida
Spionida
Terebellida
Class Clitellata
Branchiobdellida
Haplotaxida
Lumbriculida
Moniligastrida
Subclass Hirudinea
Rhynchobdellida
Arhynchobdellida
Unplaced groups
Genus Apistobranchus
Suborder Chaetopteriformia
Suborder Cirratuliformia
Genus Lobatocerebrum
Clade Maldanomorpha
Clade Paleoannelida
Family Polygordiidae
Family Siboglinidae
= Phylum Arthropoda
=See List of arthropod orders
= Phylum Brachiopoda
=Class Craniata
Craniida
Craniopsida â€
Trimerellida â€
Subphylum Linguliformea
Class Lingulata
Acrotretida â€
Lingulida
Siphonotretida â€
Class Paterinata
Paterinida â€
Subphylum Rhynchonelliformea
Class Chileata
Chileida â€
Dictyonellida â€
Class Kutorginata
Kutorginida â€
Class Obolellata
Naukatida â€
Obolellida â€
Class Rhynchonellata
Athyridida â€
Atrypida â€
Orthida â€
Protorthida â€
Pentamerida â€
Rhynchonellida
Spiriferida â€
Terebratulida
Thecideida
Class Strophomenata
Billingsellida â€
Orthotetida â€
Productida â€
Strophomenida â€
= Phylum Bryozoa
=Class Gymnolaemata
Cheilostomata
Ctenostomatida
Class Phylactolaemata
Plumatellida
Class Stenolaemata
Cyclostomatida
Cryptostomata â€
Cystoporida â€
Esthonioporata â€
Fenestrata â€
Timanodictyina â€
Trepostomatida â€
= Phylum Chaetognatha
=Aphragmophora
Phragmophora
Protoconodonta â€
Unplaced groups
Genus Capinatator
Genus Eognathacantha
Genus Protodagitta
Genus Timorebestia
= Phylum Chordata
=See List of chordate orders
= Phylum Cycliophora
=Class Eucycliophora
Symbiida
= Phylum Dicyemida
=Dicyemida does not contain any established orders but does contain three families: Conocyemidae, Dicyemidae and Kantharellidae
= Phylum Echinodermata
=See List of echinoderm orders
= Phylum Entoprocta
=Entoprocta has no orders but is split into four families; Barentsiidae, Pedicellinidae, Loxokalypodidae, and Loxosomatidae
= Phylum Gastrotricha
=Chaetonotida
Macrodasyida
= Phylum Gnathostomulida
=Bursovaginoidea
Filospermoidea
= Phylum Hemichordata
=The classes Planctosphaeroidea and Enteropneusta do not contain any orders
Class Pterobranchia
Cephalodiscida
Subclass Graptolithina
Rhabdopleurida
Dendroidea â€
Graptoloidea â€
Unplaced groups
Family Cysticamaridae
Family Wimanicrustidae
Family Dithecodendridae
Family Cyclograptidae
= Phylum Kinorhyncha
=Class Cyclorhagida
Echinorhagata
Kentrorhagata
Xenosomata
Class Allomalorhagida
Anomoirhaga
Unplaced groups
Genus Eokinorhynchus
Family Pycnophyidae
= Phylum Loricifera
=Loricifera has no classes and all species are contained within one order
Nanaloricida
= Phylum Micrognathozoa
=Micrognathozoa has no classes and its single species is placed in one order
Limnognathida
= Phylum Mollusca
=See List of mollusc orders
= Phylum Nematoda
=Nematode taxonomy is far from fully resolved, and different schemes might be used. For this list, Mike Hodda's Phylum Nematoda: a classification, catalogue and index of valid genera, with a census of valid species classification is used.
Class Enoplea
Subclass Enoplia
Superorder Enoplica
Alaimida
Enoplida
Ironida
Trefusiida
Tripyloidida
Superorder Rhaptothyreica
Rhaptothyreida
Subclass Oncholaimia
Oncholaimida
Subclass Triplonchia
Triplonchida
Tripylida
Class Dorylaimea
Subclass Dorylaimia
Dorylaimida
Subclass Bathyodontia
Bathyodontida
Mononchida
Mermithida
Subclass Trichocephalia
Trichocephalida
Marimermithida
Dioctophymatida
Muspiceida
Class Chromadorea
Subclass Chromadoria
Chromadorida
Selachinematida
Desmodorida
Desmoscolecida
Subclass Plectia
Superorder Monhysterica
Monhysterida
Superorder Plectica
Leptolaimida
Plectida
Benthimermithida
Superorder Teratocephalica
Teratocephalida
Superorder Rhabditica
Diplogasterida
Rhabditida
Spirurida
Rhigonematida
Panagrolaimida
Drilonematida
= Phylum Nematomorpha
=Gordioidea
Nectonematoidea
= Phylum Nemertea
=Class Hoplonemertea
Monostilifera
Polystilifera
Class Palaeonemertea
Archinemertea
Carinomiformes
Tubulaniformes
Class Pilidiophora
Heteronemertea
= Phylum Onychophora
=Onychophora contains no classes and no orders, but is split into two living families; Peripatidae and Peripatopsidae, and 5 extinct genera; Antennacanthopodia, Antennipatus, Helenodora, Succinipatopsis, and Tertiapatus.
= Phylum Orthonectida
=Orthonectida contains no classes or orders, but is split into two families; Pelmatosphaeridae and Rhopaluridae
= Phylum Phoronida
=Phoronida contains no classes, orders, or families, but is split into two genera; Phoronis and Phoronopsis
= Phylum Platyhelminthes
=The class Catenulida contains no orders.
Subphylum Rhabditophora
Clade Macrostomorpha
Macrostomida
Clade Trepaxonemata
Gnosonesimida
Clade Amplimatricata
Lecithoepitheliata
Polycladida
Clade Euneoophora
Proseriata
Rhabdocoela
Clade Acentrosomata
Clade Adiaphanida
Prolecithophora
Fecampiida
Tricladida
Clade Bothrioneodermata
Bothrioplanida
Superclass Neodermata
Class Cestoda
Subclass Cestodaria
Amphilinidea
Gyrocotylidea
Subclass Eucestoda
Spathebothriidea
Caryophyllidea
Haplobothriidea
Diphyllobothriidea
Diphyllidea
Trypanorhyncha
Bothriocephalidea
Litobothriidea
Lecanicephaloidea
Rhinebothriidea
Tetraphyllidea
Onchoproteocephalidea
Nippotaeniidea
Tetrabothriidea
Cyclophyllidea
Class Monogenea
Subclass Monopisthocotylea
Monocotylidea
Capsalidea
Lagarocotylidea
Montchadskyellidea
Gyrodactylidea
Dactylogyridea
Subclass Polyopisthocotylea
Polystomatidea
Chimaericolidea
Diclybothriidea
Mazocraeidea
Class Trematoda
Subclass Aspidogastrea
Aspidogastrida
Stichocotylida
Subclass Digenea
Diplostomida
Plagiorchiida
Unplaced groups
Genus Haplopharynx
= Phylum Priapulida
=Several stem group priapulid genera are not classified within any established orders. The orders listed below are solely crown priapulids.
Halicryptomorphida
Priapulimorphida
Meiopriapulomorpha
Seticoronaria
= Phylum Rotifera
=The group Acanthocephala is traditionally treated as a separate phylum from Rotifera. However, it was found that Acanthocephala are phylogenetically contained within the rotifers, and this list reflects these findings.
Seisonida
Superclass Eurotatoria
Class Bdelloidea
Adinetida
Philodinavida
Philodinida
Class Monogononta
Collothecaceae
Flosculariaceae
Ploima
Clade Acanthocephala
Class Archiacanthocephala
Apororhynchida
Gigantorhynchida
Moniliformida
Oligacanthorhynchida
Class Eoacanthocephala
Gyracanthocephala
Neoechinorhynchida
Class Palaeacanthocephala
Echinorhynchida
Heteramorphida
Polymorphida
Polyacanthorhynchida
= Phylum Tardigrada
=The class Mesotardigrada contains one species, Thermozodium esakii, which has not been found since its reported discovery in 1937, and its existence is dubious. It is contained within the order Thermozodia.
Class Eutardigrada
Apochela
Parachela
Class Heterotardigrada
Arthrotardigrada
Echiniscoidea
= Phylum Xenacoelomorpha
=The subphylum Xenoturbellida does not contain any classes or orders. It's only family is Xenoturbellidae which contains one genus, Xenoturbella.
Subphylum Acoelomorpha
Acoela
The class Nemertodermatida does not contain any orders, but does contain two families; Ascopariidae and Nemertodermatidae.