The page lists all of the families in the clade Tetrapoda, organized by taxonomic ranks. This list does not include families that are extinct.
Amphibia
Order Anura (frogs)
Suborder Archaeobatrachia Family Ascaphidae (tailed frogs) Family Bombinatoridae (fire-belly toads) Family Discoglossidae (painted frogs) Family Leiopelmatidae (New Zealand primitive frogs) Suborder Mesobatrachia Family Megophryidae (litter frogs) Family Pelobatidae (European spadefoot toads) Family Pelodytidae (parsley frogs) Family Pipidae (tongueless frogs) Family Rhinophrynidae (Mexican burrowing toad) Family Scaphiopodidae (American spadefoot toads) Suborder Neobatrachia Family Allophrynidae (Tukeit Hill frog) Family Amphignathodontidae (marsupial frogs) Family Arthroleptidae (screeching frogs) Family Brachycephalidae (saddleback toads) Family Bufonidae (true toads) Family Centrolenidae (glass frogs) Family Dendrobatidae (poison dart frogs) Family Heleophrynidae (ghost frogs) Family Hemisotidae (shovelnose frogs) Family Hylidae (tree frogs) Family Hyperoliidae (sedge or bush frogs) Family Leptodactylidae (Southern frogs) Family Mantellidae (a diverse family of frogs) Family Microhylidae (narrow mouthed frogs) Family Myobatrachidae (Australian ground frogs) Family Ranidae (true frogs) Family Rhacophoridae (moss frogs) Family Rhinodermatidae (Darwin's frog) Family Sooglossidae (Seychelles frogs)
Order Apoda (caecilians)
Family Caeciliidae (common caecilians) Family Chikilidae (Indian caecilians) Family Dermophiidae Family Grandisoniidae Family Herpelidae Family Ichthyophiidae (Asian tailed caecilians) Family Rhinatrematidae (Neotropical tailed caecilians) Family Scolecomorphidae (African tropical caecilians) Family Siphonopidae Family Typhlonectidae (aquatic caecilians)
Order Urodela (salamanders)
Suborder Cryptobranchoidea Family Cryptobranchidae (giant salamanders) Family Hynobiidae (Asiatic salamanders) Suborder Salamandroidea Family Ambystomatidae (mole salamanders) Family Amphiumidae (amphiumas or Congo eels) Family Dicamptodontidae (Pacific giant salamanders) Family Plethodontidae (lungless salamanders) Family Proteidae (mudpuppies and waterdogs) Family Rhyacotritonidae (torrent salamanders) Family Salamandridae (true salamanders and newts) Suborder Sirenoidea Family Sirenidae (sirens)
Reptilia
Order Crocodilia (crocodiles)
Family Gavialidae (gharial and false gharial) Family Alligatoridae (alligators and caimans) Family Crocodylidae (true crocodiles)
Order Rhynchocephalia (tuatara)
Family Sphenodontidae (one species: tuatara)
Order Squamata (lizards and snakes)
Family Amphisbaenidae (tropical worm lizards) Family Bipedidae (other worm lizards) Family Blanidae (Mediterranean worm lizards) Family Cadeidae (Cuban worm lizards) Family Rhineuridae (North American worm lizards) Family Trogonophidae (palearctic worm lizards) Family Dibamidae (blind lizards) Family Gekkonidae (geckos) Family Pygopodidae (legless lizards) Family Diplodactylidae Family Carphodactylidae Family Eublepharidae Family Sphaerodactylidae Family Phyllodactylidae Family Agamidae (agamas) Family Chamaeleonidae (chameleons) Family Corytophanidae (casquehead lizards) Family Crotaphytidae (collared lizards) Family Iguanidae (true iguanas and relatives) Family Leiocephalidae Family Hoplocercidae Family Dactyloidae Family Leiosauridae Family Liolaemidae (iguana relatives, such as swifts) Family Opluridae (Madagascan iguanas) Family Phrynosomatidae (spiny lizards, horn lizards, tree lizards, and more) Family Polychrotidae (anoles) Family Tropiduridae (neotropical ground lizards) Family Gymnophthalmidae (spectacled lizards) Family Lacertidae (wall lizards) Family Teiidae (tegus) Family Anguidae (slowworms, glass lizards, and alligator lizards) Family Anniellidae (American legless lizards) Family Helodermatidae (gila monsters) Family Xenosauridae (knob-scaled lizards) Family Lanthanotidae (earless monitor) Family Shinisauridae (Chinese crocodile lizard) Family Varanidae (monitor lizards) Family Cordylidae (spinytail lizards) Family Gerrhosauridae (plated lizards) Family Scincidae (skinks) Family Xantusiidae (night lizards) Family Acrochordidae (file snakes) Family Aniliidae (coral pipe snakes) Family Anomochilidae (dwarf pipe snakes) Family Boidae (boas) Family Bolyeriidae (Round Island boas) Family Colubridae (colubrids) Family Cylindrophiidae (Asian pipe snakes) Family Elapidae (cobras, sea snakes, and more) Family Homalopsidae (mudsnakes) Family Lamprophiidae Family Loxocemidae (Mexican burrowing snakes) Family Pareidae (slug snakes and more) Family Pythonidae (pythons) Family Tropidophiidae (dwarf boas) Family Uropeltidae (shieldtail snakes) Family Viperidae (vipers, rattlesnakes, and more) Family Xenodermatidae Family Xenopeltidae (sunbeam snakes) Family Anomalepidae (dawn blind snakes) Family Gerrhopilidae (Indo-Malayan blind snakes) Family Leptotyphlopidae (slender blind snakes) Family Typhlopidae ("true" blind snakes) Family Xenotyphlopidae
Order Testudines (turtles)
Family Carettochelyidae (pig-nosed turtle) Family Cheloniidae (sea turtles) Family Chelydridae (snapping turtles) Family Dermatemydidae (Central American river turtle) Family Dermochelyidae (leatherback sea turtle) Family Emydidae (pond turtles) Family Geoemydidae (Asian box turtles) Family Kinosternidae (mud turtles) Family Platysternidae (big-headed turtle) Family Testudinidae (tortoises) Family Trionychidae (softshell turtles) Family Chelidae (Austro-American sideneck turtles) Family Pelomedusidae (Afro-American sideneck turtles) Family Podocnemididae (South American side-necked river turtles, and 2 other species)
Aves
Superorder Galloanserae
Order Galliformes (gamebirds, or landfowl)
Family Cracidae (chachalacas or guans) Family Megapodiidae (megapodes) Family Numididae (guineafowls) Family Odontophoridae (New World quails) Family Phasianidae (pheasants, chickens, Old World quails, and more)
Order Anseriformes (waterfowl)
Family Anatidae (duck, geese, swans, and more) Family Anhimidae (screamers) Family Anseranatidae (magpie-goose)
Superorder Neoaves
Order Phoenicopteriformes (flamingos and extinct relatives)
Family Phoenicopteridae (flamingos)
Order Podicipediformes (grebes)
Family Podicipedidae
Order Columbiformes (pigeons and doves)
Family Columbidae
Order Mesitornithiformes (mesites)
Family Mesitornithidae
Order Pterocliformes (sandgrouses)
Family Pteroclidae
Order Apodiformes (swifts and hummingbirds)
Family Apodidae (swifts) Family Hemiprocnidae (treeswifts) Family Trochilidae (hummingbirds)
Order Caprimulgiformes (frogmouths, nightjars, and more)
Family Aegothelidae (owlet-nightjar) Family Caprimulgidae (potoos) Family Nyctibiidae (nightjars) Family Podargidae (frogmouth) Family Steatornithidae (oilbird)
Order Cuculiformes (cuckoos)
Family Cuculidae
Order Otidiformes (bustards)
Family Otididae
Order Musophagiformes (turacos)
Family Musophagidae
Order Opisthocomiformes (hoatzin)
Family Opisthocomidae
Order Gruiformes (cranes and relatives)
Family Aptornithidae (adzebills) Family Aramidae (limpkin) Family Gruidae (cranes) Family Heliornithidae (finfoots and sungrebe) Family Psophiidae (trumpeters) Family Rallidae (rails) Family Sarothruridae (flufftails)
Order Charadriiformes (waders and gulls)
Suborder Charadrii (plover-like waders) Family Charadriidae (plovers and lapwings) Family Haematopodidae (oystercatchers) Family Ibidorhynchidae (ibisbill) Family Recurvirostridae (avocets and stilts) Suborder Chionidi (thick-knees and allies) Family Burhinidae (thick-knees) Family Chionididae (sheathbills) Family Pluvianellidae (Magellanic plover) Suborder Lari (gulls and allies) Family Alcidae (puffins, guillemots, murres, and allies) Family Dromadidae (crab plover) Family Glareolidae (pratincoles and coursers) Family Laridae (gulls, terns, and skimmers) Family Pluvianidae (Egyptian plover) Family Stercorariidae (skuas) Suborder Scolopaci (snipe-like waders) Family Scolopacidae (snipe, sandpipers, phalaropes, and allies) Suborder Thinocori (aberrant charadriforms) Family Jacanidae (jacanas) Family Pedionomidae (plains wanderer) Family Rostratulidae (painted snipe) Family Thinocoridae (seedsnipe) Suborder Turnici (buttonquails) Family Turnicidae (buttonquails)
Order Gaviiformes (loons)
Family Gaviidae
Order Procellariiformes (petrels, including albatrosses and more)
Family Diomedeidae (albatrosses) Family Hydrobatidae (storm petrels) Family Oceanitidae (austral storm petrels) Family Pelecanoididae (diving petrels) Family Procellariidae (fulmars, petrels, and shearwaters)
Order Sphenisciformes (penguins)
Family Spheniscidae
Order Ciconiiformes (storks)
Family Ciconiidae
Order Pelecaniformes (boobies, cormorants, darters, and more)
Family Ardeidae (herons) Family Balaenicipitidae (shoebill) Family Pelecanidae (pelicans) Family Threskiornithidae (ibises)
Order Eurypygiformes (sunbitterns and kagus)
Family Eurypygidae (sunbitterns) Family Rhynochetidae (kagus)
Order Phaethontiformes (tropicbirds)
Family Phaethontidae
Order Cathartiformes (New World vultures)
Family Cathartidae
Order Accipitriformes (birds of prey, such as hawks and eagles)
Family Accipitridae (hawks, eagles, Old World vultures, and more) Family Pandionidae (pandion) Family Sagittariidae (secretarybird)
Order Strigiformes (owls)
Family Strigidae (true owls) Family Tytonidae (barn-owls)
Order Coliiformes (mousebirds)
Family Coliidae
Order Leptosomiformes (cuckoo roller)
Family Leptosomidae
Order Trogoniformes (trogons)
Family Trogonidae
Order Bucerotiformes (hornbills and hoopoes)
Family Bucerotidae (true hornbills) Family Bucorvidae (ground hornbills) Family Phoeniculidae (wood hoopoes) Family Upupidae (hoopoe)
Order Coraciiformes (kingfishers, bee-eaters, and more)
Family Alcedinidae (kingfishers) Family Brachypteraciidae (ground-rollers) Family Coraciidae (rollers) Family Meropidae (bee-eaters) Family Momotidae (motmots) Family Todidae (todies)
Order Piciformes (woodpeckers, puffbirds, barbets, toucans, and relatives)
Suborder Galbuli Family Bucconidae (puffbirds and relatives) Family Galbulidae (jacamars) Suborder Pici Family Capitonidae (American barbets) Family Indicatoridae (honeyguides) Family Lybiidae (African barbets) Family Megalaimidae (Asian barbets) Family Picidae (woodpeckers, piculets and wrynecks) Family Ramphastidae (toucans) Family Semnornithidae (toucan-barbets)
Order Cariamiformes (seriemas)
Family Cariamidae
Order Falconiformes (falcons and caracaras)
Family Falconidae
Order Psittaciformes (parrots)
Family Cacatuidae (cockatoos) Family Nestoridae (kea and New Zealand kaka) Family Psittacidae (various "true" parrots) Family Psittaculidae (lovebirds, fig parrots, lories, tiger parrots, pygmy parrots, and more) Family Psittrichasiidae (Pesquet's parrot and vasa parrots) Family Strigopidae (kākāpō)
Order Passeriformes (passerines) Suborder Acanthisitti Family Acanthisittidae (New Zealand wrens) Suborder Passeri (songbirds) Infraorder Climacterides Family Climacteridae (Australian treecreepers) Family Ptilonorhynchidae (bowerbirds) Infraorder Corvides Family Mohouidae (whitehead, yellowhead, and pipipi) Family Pachycephalidae (whistlers) Family Oreoicidae (Australo-Papuan bellbirds) Family Falcunculidae (crested shriketits) Family Psophodidae (quail-thrushers and jewel-babblers) Family Eulacestomidae (wattled ploughbills) Family Neosittidae (sittellas) Family Oriolidae (Old World orioles and figbirds) Family Paramythiidae (painted berrypeckers) Family Psophodidae (whipbirds and wedgebills) Family Vireonidae (vireos)