title: List of chordate orders
text: # List of chordate orders
  
  This article contains a list of all of the classes and orders that are located in the Phylum Chordata.
  
  ## Subphylum Cephalochordata
  
  ### Class Leptocardii: Lancelets
  
  * Order Amphioxiformes
  
  ### Family Pikaiidae †
  
  * Genus Pikaia †
  
  ## Olfactores (unranked)
  
  ### Subphylum Tunicata
  
  **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
  
  ### Subphylum Vertebrates
  
  **Infraphylum Cyclostomata, Superclass Agnatha: Paraphyletic jawless vertebrates**
  
  **Class Myxini: Hagfish**
  
  * Order Myxiniformes
        * Family Myxinidae
  
  **Infraphylum Cyclostomata, Superclass Agnatha: Paraphyletic jawless vertebrates**
  
  **Class Hyperoartia: Lampreys and their † kin**
  
  * Order Petromyzontiformes
  
  **Infraphylum Gnathostomata: Jawed vertebrates**
  
  **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.)
  
  **Infraphylum Gnathostomata: Jawed vertebrates**
  
  **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
  
  **Infraphylum Gnathostomata: Jawed vertebrates**
  
  **Class Acanthodii †**
  
  * Order Climatiiformes
  * Order Ischnacanthiformes
  * Order Acanthodiformes
  
  **Infraphylum Gnathostomata: Jawed vertebrates**
  
  **Superclass Osteichthyes: Bony fish**
  
  **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 †
  
  **Infraphylum Gnathostomata: Jawed vertebrates**
  
  **Superclass Osteichthyes: Bony fish**
  
  **Class Actinopterygii: Ray-finned fish**
  
  **Subclass Cladistii**
  
  * Order Polypteriformes
  
  **Infraphylum Gnathostomata: Jawed vertebrates**
  
  **Superclass Osteichthyes: Bony fish**
  
  **Class Actinopterygii: Ray-finned fish**
  
  **Subclass Chondrostei**
  
  * Order Acipenseriformes: sturgeons and paddlefishes
  
  **Infraphylum Gnathostomata: Jawed vertebrates**
  
  **Superclass Osteichthyes: Bony fish**
  
  **Class Actinopterygii: Ray-finned fish**
  
  **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
  
  **Infraphylum Gnathostomata: Jawed vertebrates**
  
  **Superclass Osteichthyes: Bony fish**
  
  **Class Sarcopterygii: Lobe-finned fish**
  
  * Subclass Actinistia (coelacanths)
     * Order Coelacanthiformes, the coelacanth
  * Subclass Dipnoi (lungfish)
     * Order Ceratodontiformes
     * Order Lepidosireniformes
  
  **Infraphylum Gnathostomata: Jawed vertebrates**
  
  **Superclass Tetrapoda**
  
  **Class Amphibia: Amphibians**
  
  * Order Urodela or Caudata (salamanders)
  * Order Anura (frogs and toads)
  * Order Gymnophiona or Apoda (caecilians)
  
  **Infraphylum Gnathostomata: Jawed vertebrates**
  
  **Superclass Tetrapoda**
  
  **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)
  
  **Infraphylum Gnathostomata: Jawed vertebrates**
  
  **Superclass Tetrapoda**
  
  **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
  
  **Infraphylum Gnathostomata: Jawed vertebrates**
  
  **Superclass Tetrapoda**
  
  **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
  