List of chordate orders

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Spotted gar, Lepisosteus oculatus

List of Chordata classes and orders in Phylum Chordata, Kingdom Animalia.

Subphylum Tunicate[edit]

Class Ascidiacea[edit]

Chelyosoma macleayanum

Ascideans and sessile tunicates

Class Thaliacea[edit]

Pelagic tunicates

Class Larvacea[edit]

solitary, free-swimming tunicates

Subphylum Cephalochordate[edit]

Class Leptocardii (lancelets)[edit]

Family Pikaiidae †[edit]

Subphylum Vertebrates[edit]

Infraphylum Cyclostomata, Superclass Agnatha[edit]

Paraphyletic jawless vertebrates; 100+ species

Class Myxini (hagfish)[edit]

    • Order Myxiniformes
      • Family Myxinidae

Class Hyperoartia (lampreys and their † kin)[edit]

    • Order Petromyzontiformes

Infraphylum Gnathostomata (jawed vertebrates)[edit]

Class Placodermi[edit]

Class Chondrichthyes (cartilaginous fish)[edit]

Dogfish shark

Class Acanthodii[edit]


Superclass Osteichthyes (bony fish)[edit]

Class Actinopterygii (ray-finned fish)[edit]
Polypterus bichir
Subclass Cladistia
Subclass Chondrostei
Subclass Neopterygii
Class Sarcopterygii (lobe-finned fish)[edit]

Superclass Tetrapoda[edit]

Class Amphibia (amphibians)[edit]
Class Reptilia (reptiles)[edit]
Class Aves (birds)[edit]
Southern rockhopper penguin (Eudyptes chrysocome), a flightless bird
Class Mammalia (mammals)[edit]

See also[edit]


  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.