List of chordate orders

This is a list of biological orders in the scientific classification of chordates.

this is a work-in-progress: please use the same layout as the entries below for new additions

Phylum Chordata

Class Acanthodii - extinct

Class Actinopterygii (ray-finned fish)

• Subclass Chondrostei
  • Polypteriformes, including the bichirs and reedfishes ^[1]
  • Acipenseriformes, including the sturgeons and paddlefishes
• Subclass Neopterygii
  • Infraclass Holostei
    • Lepisosteiformes, the gars
    • Amiiformes, the bowfins
  • Infraclass Teleostei
    • Superorder Osteoglossomorpha
      • Osteoglossiformes, the bony-tongued fishes
      • Hiodontiformes, including the mooneye and goldeye
    • Superorder Elopomorpha
      • Elopiformes, including the ladyfishes and tarpon
      • Albuliformes, the bonefishes
      • Notacanthiformes, including the halosaurs and spiny eels
      • Anguilliformes, the true eels and gulpers
      • Saccopharyngiformes, including the gulper eel
    • Superorder Clupeomorpha
      • Clupeiformes, including herrings and anchovies
    • Superorder Ostariophysi
      • Gonorynchiformes, including the milkfishes
      • Cypriniformes, including barbs, carp, danios, goldfishes, loaches, minnows, rasboras
      • Characiformes, including characins, pencilfishes, hatchetfishes, piranhas, tetras.
      • Gymnotiformes, including electric eels and knifefishes
      • Siluriformes, the catfishes
    • Superorder Protacanthopterygii
      • Order Salmoniformes, including salmon and trout
      • Esociformes the pike
      • Osmeriformes, including the smelts and galaxiids
    • Superorder Stenopterygii
      • Ateleopodiformes, the jellynose fish
      • Stomiiformes, including the bristlemouths and marine hatchetfishes
    • Superorder Cyclosquamata
      • Aulopiformes, including the Bombay duck and lancetfishes
    • Superorder Scopelomorpha
      • Myctophiformes, including the lanternfishes
    • Superorder Lampridiomorpha
      • Lampriformes, including the oarfish, opah and ribbonfishes
    • Superorder Polymyxiomorpha
      • Polymixiiformes, the beardfishes
    • Superorder Paracanthopterygii
      • Percopsiformes, including the cavefishes and trout-perches
      • Batrachoidiformes, the toadfishes
      • Lophiiformes, including the anglerfishes
      • Gadiformes, including cods
      • Ophidiiformes, including the pearlfishes
    • Superorder Acanthopterygii
      • Mugiliformes, the mullets
      • Atheriniformes, including silversides and rainbowfishes
      • Beloniformes, including the flyingfishes
      • Cetomimiformes, the whalefishes
      • Cyprinodontiformes, including livebearers, killifishes
      • Stephanoberyciformes, including the ridgeheads
      • Beryciformes, including the fangtooths and pineconefishes
      • Zeiformes, including the dories
      • Gobiesociformes, the clingfishes^[2]
      • Gasterosteiformes including sticklebacks, pipefishes, seahorses
      • Syngnathiformes, including the seahorses and pipefishes^[3]
      • Synbranchiformes, including the swamp eels
      • Tetraodontiformes, including the filefishes and pufferfish
      • Pleuronectiformes, the flatfishes
      • Scorpaeniformes, including scorpionfishes and the sculpins
      • Perciformes 40% of all fish including anabantids, Centrarchids (incl. bass and sunfish), Cichlids, gobies, gouramis, mackerel, perches, scats, whiting, wrasses

Class Amphibia (amphibians)

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

Class Ascidiacea (ascideans and sessile tunicates)

• Enterogona
• Pleurogona
• Aspiraculata

Class Aves (birds)

• Superorder Palaeognathae
  • Struthioniformes, Ostrich, emus, kiwis, and wang
  • Tinamiformes, tinamous
• Infraclass Neognathae
  • Superorder Galloanserae (fowl)
    • Anseriformes, waterfowl
    • Galliformes, fowl
  • Superorder Neoaves
    • Sphenisciformes, penguins
    • Gaviiformes, loons
    • Podicipediformes, grebes
    • Procellariiformes, albatrosses, petrels, and allies
    • Pelecaniformes, pelicans and allies
    • Ciconiiformes, storks and allies
    • Phoenicopteriformes, flamingos
    • Accipitriformes, eagles, hawks and allies (taxonomists have traditionally placed these groups in the Falconiformes)
    • Falconiformes, falcons
    • Turniciformes, button-quail
    • Opisthocomiformes, Hoatzin (this enigmatic bird was traditionally treated as a family within either the Galliformes or Cuculiformes)
    • Gruiformes, cranes and allies
    • Charadriiformes, plovers and allies
    • Pterocliformes, sandgrouse (this enigmatic group was traditionally treated as a family in any of three different orders: Charadriiformes, Ciconiiformes, and Columbiformes)
    • Columbiformes, doves and pigeons
    • Psittaciformes, parrots and allies
    • Cuculiformes, cuckoos
    • Strigiformes, owls
    • Caprimulgiformes, nightjars and allies
    • Apodiformes, swifts
    • Coliiformes, mousebirds
    • Trogoniformes, trogons
    • Coraciiformes, kingfishers
    • Galbuliformes, jacamars and puffbirds (these groups were traditionally treated as families in the order Piciformes)
    • Piciformes, woodpeckers and allies
    • Passeriformes, passerines

Class Chondrichthyes (cartilaginous fish)

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

Class Hyperoartia (lampreys and extinct kin)

• Petromyzontiformes (lampreys)

Class Larvacea

Class Leptocardii (lancelets)

• Amphioxiformes

Class Mammalia (mammals)

• Subclass Prototheria
  • Monotremata: monotremes
• Subclass Theria
  • Infraclass Marsupialia
    • Didelphimorphia: opossums
    • Paucituberculata: rat opossums
    • Microbiotheria: Monito del Monte
    • Dasyuromorphia: marsupial carnivores
    • Peramelemorphia: marsupial omnivores
    • Notoryctemorphia: marsupial moles
    • Diprotodontia: marsupial herbivores; kangaroos, wallabies, possums and allies
  • Infraclass Eutheria
    • Superorder Afrotheria
      • Afrosoricida: tenrecs and golden moles
      • Macroscelidea: elephant shrews
      • Tubulidentata: Aardvark
      • Hyracoidea: hyraxes
      • Proboscidea: elephants
      • Sirenia: manatees and dugongs
    • Superorder Xenarthra
      • Cingulata: armadillos
      • Pilosa: sloths and anteaters
    • Superorder Laurasiatheria
      • Erinaceomorpha: hedgehogs
      • Soricomorpha: shrews, moles
      • Chiroptera: bats
      • Pholidota: pangolins
      • Carnivora: carnivores; cats, dogs, bears, seals, sea lions and others
      • Perissodactyla: odd-toed ungulates; horses, rhinos, tapirs
      • Artiodactyla: even-toed ungulates: antelopes, cattle, giraffes, camels, pigs, hippos, sheep, goats
      • Cetacea: whales, dolphins, and porpoises
    • Superorder Euarchontoglires
      • Dermoptera: colugos
      • Scandentia: treeshrews
      • Primates: lemurs, monkeys, apes and allies
      • Rodentia: rodents
      • Lagomorpha: rabbits, hares and pikas

Class Myxini (hagfishes)

Class Placodermi - extinct

Class Reptilia (reptiles)

• Crocodilia (Crocodilians)
• Rhynchocephalia (Tuataras)
• Squamata (Lizards, Snakes)
• Testudines (Turtles and their kin)

Class Sarcopterygii (fleshy-finned fishes)

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

Class Sorberacea

Class Thaliacea (pelagic tunicates)

• Doliolida
• Pyrosomida
• Salpida, salps

References

1. ^ In Nelson, Polypteriformes is placed in its own subclass Cladistia.
2. ^ In ITIS, Gobiesociformes is placed as the suborder Gobiesocoidei of the order Perciformes.
3. ^ In Nelson and ITIS, Syngnathiformes is placed as the suborder Syngnathoidei of the order Gasterosteiformes.

See also

• List of animal classes