List of chordate orders

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Spotted gar, Lepisosteus oculatus Lepisosteus oculatus.jpg
Spotted gar, Lepisosteus oculatus

This article contains a list of all of the classes and orders that are located in the Phylum Chordata.

Contents

The subphyla Tunicata and Vertebrata are in the unranked Olfactores clade, while the subphylum Cephalochordata is not. Animals in Olfactores are characterized as having a more advanced olfactory system than animals not in it.

The only extinct classes shown are Placodermi and Acanthodii. Note that there are many other extinct chordate groups that are not shown here.

Subphylum Cephalochordata

Class Leptocardii: Lancelets

Lancelet Branchiostoma lanceolatum Branchiostoma lanceolatum.jpg
Lancelet Branchiostoma lanceolatum

Subphylum Tunicata

Class Ascidiacea: Sessile tunicates

Chelyosoma macleayanum Chelyosoma macleayanum 001.png
Chelyosoma macleayanum

Class Thaliacea: Pelagic tunicates

Class Appendicularia: Solitary, free-swimming tunicates

Subphylum Vertebrata

Infraphylum Agnatha: Jawless vertebrates

Superclass Cyclostomata: Extant jawless vertebrates

Class Myxini: Hagfish
  • Order Myxiniformes
Class Hyperoartia: Lampreys

Infraphylum Gnathostomata: Jawed vertebrates

Bothriolepis canadensis Bothriolepis canadensis-001.JPG
Bothriolepis canadensis

Class Placodermi: Armoured fish †

Class Chondrichthyes: Cartilaginous fish

Dogfish shark Spiny dogfish.jpg
Dogfish shark
Pristiophorus japonicus Pristiophorus japonicus cropped.jpg
Pristiophorus japonicus

Class Acanthodii: Spiny sharks †

Acanthodes Acanthodes BW.jpg
Acanthodes

Superclass Osteichthyes: Bony fish

Class Actinopterygii: Ray-finned fish
Atlantic sturgeon Sturgeon2.jpg
Atlantic sturgeon
  • Order Asarotiformes
  • Order Discordichthyiformes †
  • Order Paphosisciformes †
  • Order Scanilepiformes †
  • Order Cheirolepidiformes
  • Order Paramblypteriformes †
  • Order Rhadinichthyiformes †
  • Order Palaeonisciformes †
  • Order Tarrasiiformes †
  • Order Pachycormiformes
  • Order Ptycholepiformes †
  • Order Redfieldiiformes †
  • Order Haplolepidiformes †
  • Order Aeduelliformes †
  • Order Platysomiformes †
  • Order Dorypteriformes †
  • Order Eurynotiformes †
Subclass Cladistii
Subclass Chondrostei
Subclass Neopterygii
Lepisosteus oculatus Lepisosteus oculatus.jpg
Lepisosteus oculatus
Eurypharynx pelecanoides Eurypharynx.jpg
Eurypharynx pelecanoides
Argyropelecus aculeatus ArgyropelecusAculeatus.jpg
Argyropelecus aculeatus
Class Sarcopterygii: Lobe-finned fish
West Indian Ocean coelacanth Latimeria Paris.jpg
West Indian Ocean coelacanth

Superclass Tetrapoda: Four-limbed vertebrates

Class Amphibia: Amphibians
Class Reptilia: Reptiles
Saltwater crocodile SaltwaterCrocodile('Maximo').jpg
Saltwater crocodile
Class Aves: Birds
Southern rockhopper penguin (Eudyptes chrysocome), a flightless bird Falkland Islands Penguins 88.jpg
Southern rockhopper penguin (Eudyptes chrysocome), a flightless bird
Class Mammalia: Mammals

See also

References

  1. In ITIS, Gobiesociformes is placed as the suborder Gobiesocoidei of the order Perciformes.
  2. In Nelson and ITIS, Syngnathiformes is placed as the suborder Syngnathoidei of the order Gasterosteiformes.