List of chordate orders

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

Class Leptocardii: Lancelets

 * Order Amphioxiformes

Class Ascidiacea: Ascideans and sessile tunicates

 * Order Enterogona
 * Order Pleurogona
 * Order Aspiraculata

Class Thaliacea: Pelagic tunicates

 * Order Doliolida
 * Order Pyrosomida
 * Order Salpida: salps

Class Appendicularia: Solitary, free-swimming tunicates

 * Order Copelata

Class Myxini: Hagfish

 * Order Myxiniformes
 * Family Myxinidae

Class Hyperoartia: Lampreys and their † kin

 * Order Petromyzontiformes

Class Placodermi †

 * Order Acanthothoraci
 * Order Arthrodira
 * Order Antiarchi
 * Order Brindabellaspida
 * Order Petalichthyida
 * Order Phyllolepida
 * Order Ptyctodontida
 * Order Rhenanida
 * Order Pseudopetalichthyida (The placement of this order is debated.)
 * Order Stensioellida (The placement of this monotypic order is debated.)

Class Chondrichthyes: Cartilaginous fish

 * Subclass Elasmobranchii
 * Superorder Batoidea
 * Order Rajiformes: rays and skates
 * Order Rhinopristiformes: sawfishes
 * Order Torpediniformes: electric rays
 * Order Myliobatiformes: (sting)rays
 * Superorder Selachimorpha (sharks)
 * Order Heterodontiformes: bullhead sharks
 * Order Orectolobiformes: carpet sharks
 * Order Carcharhiniformes: ground sharks
 * Order Lamniformes: mackerel sharks
 * Order Hexanchiformes: frilled and cow sharks
 * Order Squaliformes: dogfish sharks
 * Order Squatiniformes: angel sharks
 * Order Pristiophoriformes: saw sharks
 * Subclass Holocephali
 * Order Chimaeriformes: chimaeras

Class Acanthodii †

 * Order Climatiiformes
 * Order Ischnacanthiformes
 * Order Acanthodiformes

Class Actinopterygii: Ray-finned fish

 * 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
 * Order Polypteriformes
 * Subclass Chondrostei
 * Order Acipenseriformes: sturgeons and paddlefishes
 * Subclass Neopterygii
 * Infraclass Holostei
 * Order Lepisosteiformes, the gars
 * Order Amiiformes, the bowfins
 * Infraclass Teleostei
 * Superorder Osteoglossomorpha
 * Order Osteoglossiformes, the bony-tongued fishes
 * Order Hiodontiformes, including the mooneye and goldeye
 * Order Lycopteriformes
 * Order Ichthyodectiformes †
 * Superorder Elopomorpha
 * Order Elopiformes, including the ladyfishes and tarpon
 * Order Albuliformes, the bonefishes
 * Order Notacanthiformes, including the halosaurs and spiny eels
 * Order Anguilliformes, the true eels and gulpers
 * Order Saccopharyngiformes, including the gulper eel
 * Superorder Clupeomorpha
 * Order Clupeiformes, including herrings and anchovies
 * Superorder Ostariophysi
 * Order Gonorynchiformes, including the milkfishes
 * Order Cypriniformes, including barbs, carp, danios, goldfishes, loaches, minnows, rasboras
 * Order Characiformes, including characins, pencilfishes, hatchetfishes, piranhas, tetras.
 * Order Gymnotiformes, including electric eels and knifefishes
 * Order Siluriformes, the catfishes
 * Superorder Protacanthopterygii
 * Order Salmoniformes, including salmon and trout
 * Order Esociformes the pike
 * Order Osmeriformes, including the smelts and galaxiids
 * Superorder Stenopterygii
 * Order Ateleopodiformes, the jellynose fish
 * Order Stomiiformes, including the bristlemouths and marine hatchetfishes
 * Superorder Cyclosquamata
 * Order Aulopiformes, including the Bombay duck and lancetfishes
 * Superorder Scopelomorpha
 * Order Myctophiformes, including the lanternfishes
 * Superorder Lampridiomorpha
 * Order Lampriformes, including the oarfish, opah and ribbonfishes
 * Superorder Polymyxiomorpha
 * Order Polymixiiformes, the beardfishes
 * Superorder Paracanthopterygii
 * Order Percopsiformes, including the cavefishes and trout-perches
 * Order Batrachoidiformes, the toadfishes
 * Order Lophiiformes, including the anglerfishes
 * Order Gadiformes, including cods
 * Order Ophidiiformes, including the pearlfishes
 * Superorder Acanthopterygii
 * Order Mugiliformes, the mullets
 * Order Atheriniformes, including silversides and rainbowfishes
 * Order Beloniformes, including the flyingfishes
 * Order Cetomimiformes, the whalefishes
 * Order Cyprinodontiformes, including livebearers, killifishes
 * Order Stephanoberyciformes, including the ridgeheads
 * Order Beryciformes, including the fangtooths and pineconefishes
 * Order Zeiformes, including the dories
 * Order Gobiesociformes, the clingfishes
 * Order Gasterosteiformes including sticklebacks, pipefishes, seahorses
 * Order Syngnathiformes, including the seahorses and pipefishes
 * Order Synbranchiformes, including the swamp eels
 * Order Tetraodontiformes, including the filefishes and pufferfish
 * Order Pleuronectiformes, the flatfishes
 * Order Scorpaeniformes, including scorpionfishes and the sculpins
 * Order Perciformes 40% of all fish including anabantids, centrarchids (incl. bass and sunfish), cichlids, gobies, gouramis, mackerel, perches, scats, whiting, wrasses

Class Sarcopterygii: Lobe-finned fish

 * Subclass Actinistia (coelacanths)
 * Order Coelacanthiformes, the coelacanth
 * Subclass Dipnoi (lungfish)
 * Order Ceratodontiformes
 * Order Lepidosireniformes

Class Amphibia: Amphibians

 * Order Urodela or Caudata (salamanders)
 * Order Anura (frogs and toads)
 * Order Gymnophiona or Apoda (caecilians)

Class Reptilia: Reptiles

 * Subclass Diapsida
 * Infraclass Archosauromorpha
 * Superorder Crocodylomorpha
 * Order Crocodilia (Crocodilians)
 * Class Aves (Birds)
 * Infraclass Lepidosauromorpha
 * Superorder Lepidosauria
 * Order Rhynchocephalia (tuataras)
 * Order Squamata (lizards, snakes)
 * Subclass Anapsida
 * Order Testudines (turtles and their kin)

Class Aves: Birds

 * Subclass Neornithes
 * Infraclass Palaeognathae
 * Order Apterygiformes kiwis
 * Order Casuariiformes cassowaries and emu
 * Order Rheiformes rheas
 * Order Struthioniformes, ostriches
 * Order Tinamiformes, tinamous
 * Infraclass Neognathae
 * Superorder Galloanserae (fowl)
 * Order Anseriformes, waterfowl
 * Order Galliformes, fowl
 * Superorder Neoaves
 * Order Sphenisciformes, penguins
 * Order Gaviiformes, loons
 * Order Podicipediformes, grebes
 * Order Procellariiformes, albatrosses, petrels, and allies
 * Order Pelecaniformes, pelicans and allies
 * Order Ciconiiformes, storks and allies
 * Order Phoenicopteriformes, flamingos
 * Order Accipitriformes, eagles, hawks and allies (taxonomists have traditionally placed these groups in the Falconiformes)
 * Order Falconiformes, falcons
 * Order Opisthocomiformes, hoatzin (this enigmatic bird was traditionally treated as a family within either the Galliformes or Cuculiformes)
 * Order Gruiformes, cranes and allies
 * Order Charadriiformes, plovers and allies
 * Order Pterocliformes, sandgrouse (this enigmatic group was traditionally treated as a family in any of three different orders: Charadriiformes, Ciconiiformes, and Columbiformes)
 * Order Columbiformes, doves and pigeons
 * Order Psittaciformes, parrots and allies
 * Order Cuculiformes, cuckoos
 * Order Strigiformes, owls
 * Order Caprimulgiformes, nightjars and allies
 * Order Apodiformes, swifts
 * Order Coliiformes, mousebirds
 * Order Trogoniformes, trogons
 * Order Coraciiformes, kingfishers
 * Order Piciformes, woodpeckers and allies
 * Order Passeriformes, passerines

Class Mammalia: Mammals

 * Subclass Prototheria
 * Order Monotremata, monotremes
 * Subclass Theria
 * Infraclass Marsupialia
 * Order Didelphimorphia, opossums
 * Order Paucituberculata, rat opossums
 * Order Microbiotheria, monito del monte
 * Order Dasyuromorphia, marsupial carnivores
 * Order Peramelemorphia, marsupial omnivores
 * Order Notoryctemorphia, marsupial moles
 * Order Diprotodontia, marsupial herbivores; kangaroos, wallabies, possums and allies
 * Infraclass Eutheria
 * Magnorder Atlantogenata
 * Superorder Afrotheria
 * Grandorder Afrosoricida
 * Order Afrosoricida, tenrecs and golden moles
 * Order Macroscelidea, elephant shrews
 * Order Tubulidentata, aardvark
 * Grandorder Paenungulata
 * Order Hyracoidea, hyraxes
 * Mirorder Tethytheria
 * Order Proboscidea, elephants
 * Order Sirenia, manatees and dugongs
 * Superorder Xenarthra
 * Order Cingulata, armadillos
 * Order Pilosa, sloths and anteaters
 * Magnorder Boreoeutheria
 * Superorder Laurasiatheria
 * Order Eulipotyphla, hedgehogs, shrews, moles
 * Grandorder Ferungulata
 * Order Cetartiodactyla, cetaceans and even-toed ungulates
 * Clade Pegasoferae
 * Order Chiroptera, bats
 * Mirorder Zooamata
 * Order Perissodactyla, odd-toed ungulates; horses, rhinos, tapirs
 * Clade Ferae
 * Order Pholidota, pangolins
 * Order Carnivora, carnivores; cats, dogs, bears, seals, sea lions and others
 * Order †Creodonta hyaenodontidae hyeanodon, dissopsalis, sarkastostodon, and megistotherium.
 * Superorder Euarchontoglires
 * Grandorder Euarchonta
 * Mirorder Sundatheria
 * Order Dermoptera, colugos
 * Order Scandentia, treeshrews
 * Mirorder Primatomorpha
 * Order Primates, lemurs, monkeys, apes and allies
 * Grandorder Glires
 * Order Rodentia, rodents
 * Order Lagomorpha, rabbits, hares and pikas