Opinions from R. L. Carroll 1988
- 'Aaptoryctes belongs to Palaeoryctidae'
- 'Ablepharus belongs to Scincidae'
- 'Aboletylestes belongs to Palaeoryctidae'
- 'Abrictosaurus belongs to Heterodontosauridae'
- 'Abrocomidae belongs to Octodontoidea'
- 'Acamana belongs to Notoungulata'
- 'Acanthodes belongs to Acanthodidae'
- 'Acanthodidae belongs to Acanthodiformes'
- 'Acanthodiformes belongs to Acanthodii'
- 'Acanthopholis belongs to Nodosauridae'
- 'Acanthostega belongs to Acanthostegidae'
- 'Acanthostegidae belongs to Ichthyostegalia'
- 'Accipitridae belongs to Falconiformes'
- 'Aceratherium belongs to Rhinocerotidae'
- 'Acerosodontosauridae belongs to Eosuchia'
- 'Acerosodontosaurus belongs to Acerosodontosauridae'
- 'Acheloma belongs to Trematopsidae'
- 'Acherontemys belongs to Chelydridae'
- 'Acherontiscidae belongs to Lepospondyli'
- 'Acherontiscus belongs to Acherontiscidae'
- 'Achlyoscapter belongs to Talpidae'
- 'Acinonyx belongs to Felidae'
- 'Aciprion belongs to Iguanidae'
- 'Acleistorhinidae belongs to Captorhinomorpha'
- 'Acleistorhinus belongs to Acleistorhinidae'
- 'Acoelodus belongs to Oldfieldthomasiidae'
- 'Acoelohyrax belongs to Isotemnidae'
- 'Acotherulum belongs to Cebochoeridae'
- 'Acris belongs to Hylidae'
- 'Acrocanthosaurus belongs to Spinosauridae'
- 'Acrochordidae belongs to Acrochordoidea'
- 'Acrochordoidea belongs to Henophidia'
- 'Acrochordus belongs to Acrochordidae'
- 'Acrodelphidae belongs to Odontoceti'
- 'Acrodelphis belongs to Acrodelphidae'
- 'Acrophoca belongs to Phocidae'
- 'Acropithecus belongs to Archaeopithecidae'
- 'Acroplous belongs to Saurerpetontidae'
- 'Acrotitan belongs to Brontotheridae'
- 'Acteosaurus belongs to Dolichosauridae'
- 'Actinodon belongs to Eryopidae'
- 'Actiobates belongs to Trematopsidae'
- 'Adamisaurus belongs to Teiidae'
- 'Adapidae belongs to Adapiformes'
- 'Adapidium belongs to Esthonychidae'
- 'Adapiformes belongs to Prosimii'
- 'Adapisorex belongs to Erinaceidae'
- 'Adapisoriculus belongs to Insectivora'
- 'Adcrocuta belongs to Hyaenidae'
- 'Adeloblarina belongs to Soricidae'
- 'Adelogyrinidae belongs to Lepospondyli'
- 'Adelogyrinus belongs to Adelogyrinidae'
- 'Adelospondylus belongs to Adelogyrinidae'
- 'Adelphailurus belongs to Felidae'
- 'Adelpharctos belongs to Ursidae'
- 'Adianthidae belongs to Litopterna'
- 'Adianthus belongs to Adianthidae'
- 'Adiantoides belongs to Adianthidae'
- 'Adinotherium belongs to Toxodontidae'
- 'Admetophoneus belongs to Brithopodidae'
- 'Adocus belongs to Dermatemydidae'
- 'Adracon belongs to Carnivora'
- 'Adunator belongs to Erinaceomorpha'
- 'Aegialornis belongs to Aegialornithidae'
- 'Aegialornithidae belongs to Apodi'
- 'Aegothelidae belongs to Caprimulgiformes'
- 'Aegyptosaurus belongs to Titanosauridae'
- 'Aegyptosuchus belongs to Stomatosuchidae'
- 'Aelurocyon belongs to Mustelidae'
- 'Aelurodon belongs to Canidae'
- 'Aelurogale belongs to Felidae'
- 'Aelurognathus belongs to Gorgonopsidae'
- 'Aeluroidea belongs to Carnivora'
- 'Aeluropsis belongs to Felidae'
- 'Aelurosaurus belongs to Gorgonopsidae'
- 'Aeolodon belongs to Teleosauridae'
- 'Aepinacodon belongs to Anthracotheriidae'
- 'Aepisaurus belongs to Titanosauridae'
- 'Aepycamelus belongs to Camelidae'
- 'Aepyceros belongs to Bovidae'
- 'Aepyornis belongs to Aepyornithidae'
- 'Aepyornithidae belongs to Aepyornithiformes'
- 'Aepyornithiformes belongs to Palaeognathae'
- 'Aerosaurus belongs to Varanopseidae'
- 'Aethia belongs to Alcidae'
- 'Aetiocetidae belongs to Mysticeti'
- 'Aetiocetus belongs to Aetiocetidae'
- 'Aetosauria belongs to Thecodontia'
- 'Aetosauroides belongs to Stagnolepididae'
- 'Aetosaurus belongs to Stagnolepididae'
- 'Afrocyon belongs to Amphicyonidae'
- 'Afrosmilus belongs to Felidae'
- 'Agabelus belongs to Delphinidae'
- 'Agama belongs to Agamidae'
- 'Agamidae belongs to Iguania'
- 'Aglaocetus belongs to Balaenidae'
- 'Agnotherium belongs to Amphicyonidae'
- 'Agomphus belongs to Dermatemydidae'
- 'Agorophiidae belongs to Odontoceti'
- 'Agorophius belongs to Agorophiidae'
- 'Agriocetus belongs to Odontoceti'
- 'Agriochoeridae belongs to Merycoidodontoidea'
- 'Agriochoerus belongs to Agriochoeridae'
- 'Agriotherium belongs to Ursidae'
- 'Aguascalientia belongs to Camelidae'
- 'Aigialosauridae belongs to Varanoidea'
- 'Aigialosaurus belongs to Aigialosauridae'
- 'Aigialosuchus belongs to Crocodylidae'
- 'Ailuravus belongs to Ischyromyidae'
- 'Ailurictis belongs to Mustelidae'
- 'Ailuropoda belongs to Ursidae'
- 'Aistopoda was reranked as a order and belongs to Lepospondyli'
- 'Aivukus belongs to Odobaenidae'
- 'Akanthosuchus belongs to Alligatoridae'
- 'Akidnognathus belongs to Moschorhinidae'
- 'Akidnognathus parvus belongs to Akidnognathus' according to Haughton 1918
- 'Akrochelys belongs to Carettochelyidae'
- 'Aksyiria belongs to Artiodactyla'
- 'Alachtherium belongs to Odobaenidae'
- 'Alamosaurus belongs to Titanosauridae'
- 'Alaudidae belongs to Passeriformes'
- 'Albanerpeton belongs to Prosirenidae'
- 'Albaneryx belongs to Boidae'
- 'Albanohyus belongs to Tayassuidae'
- 'Albertogaudryia belongs to Trigonostylopidae'
- 'Albertosaurus belongs to Tyrannosauridae'
- 'Albireo belongs to Albireonidae'
- 'Albireonidae belongs to Odontoceti'
- 'Alca belongs to Alcidae'
- 'Alcedinidae belongs to Halcyones'
- 'Alcelaphus belongs to Bovidae'
- 'Alces belongs to Cervidae'
- 'Alcidae belongs to Charadriiformes'
- 'Alcodes belongs to Alcidae'
- 'Alectrosaurus belongs to Tyrannosauridae'
- 'Alegeinosaurus belongs to Dissorophidae'
- 'Aletocyon belongs to Canidae'
- 'Aletodon belongs to Hyopsodontidae'
- 'Alforjas belongs to Camelidae'
- 'Algoasaurus belongs to Titanosauridae'
- 'Alioramus belongs to Tyrannosauridae'
- 'Alitoxodon belongs to Toxodontidae'
- 'Allacerops belongs to Hyracodontidae'
- 'Allaeochelys belongs to Carettochelyidae'
- 'Allalmeia belongs to Oldfieldthomasiidae'
- 'Alle belongs to Alcidae'
- 'Allictops belongs to Pseudictopidae'
- 'Alligator belongs to Alligatoridae'
- 'Alligatorellus belongs to Atoposaurides'
- 'Alligatoridae belongs to Eusuchia'
- 'Alligatorium is corrected as Alligatorum and belongs to Atoposaurides'
- 'Allocyon belongs to Ursidae'
- 'Allodaposuchus belongs to Crocodylidae'
- 'Allodelphis belongs to Platanistidae'
- 'Allodesmus belongs to Desmatophocidae'
- 'Allognathosuchus belongs to Alligatoridae'
- 'Allohyaena belongs to Hyaenidae'
- 'Allopleuron belongs to Cheloniidae'
- 'Allosauridae belongs to Theropoda'
- 'Allosaurus belongs to Allosauridae'
- 'Allosorex belongs to Soricidae'
- 'Allostylops belongs to Arctostylopidae'
- 'Allotheria belongs to Mammalia'
- 'Alluvisorex belongs to Soricidae'
- 'Almasauridae belongs to Almasauroidea'
- 'Almasauroidea belongs to Temnospondyli'
- 'Almasaurus belongs to Almasauridae'
- 'Almogaver belongs to Phenacodontidae'
- 'Alocodon is a subjective synonym of Alocodontulum'
- 'Alocodontulum belongs to Epoicotheriidae'
- 'Alopecocyon belongs to Ursidae'
- 'Alopex belongs to Canidae'
- 'Aloposaurus belongs to Gorgonopsidae'
- 'Alsaticopithecus belongs to Amphilemuridae'
- 'Alticonodon belongs to Triconodontidae'
- 'Altilambda belongs to Pastoralodontidae'
- 'Altispinax belongs to Spinosauridae'
- 'Alzadasaurus belongs to Elasmosauridae'
- 'Ambiortidae belongs to Neornithes'
- 'Ambiortus belongs to Ambiortidae'
- 'Amblycoptus belongs to Soricidae'
- 'Amblypteridae belongs to Palaeonisciformes'
- 'Amblysomus belongs to Chrysochloridae'
- 'Amblystoma [misspelled as Ambystoma] belongs to Ambystomatidae'
- 'Ambystomatidae belongs to Ambystomatoidea'
- 'Ambystomatoidea belongs to Urodeles'
- 'Ambystomichnus belongs to Dicamptodontidae'
- 'Amebelodon belongs to Gomphotheriidae'
- 'Ameghinornis belongs to Phorusrhacidae'
- 'Ameiseophis belongs to Colubridae'
- 'Ameiva belongs to Teiidae'
- 'Amelotabes belongs to Epoicotheriidae'
- 'Ammodramus belongs to Fringillidae'
- 'Ammosaurus belongs to Anchisauridae'
- 'Amphekepubis belongs to Mosasauridae'
- 'Amphibamus belongs to Dissorophidae'
- 'Amphicaenopus belongs to Rhinocerotidae'
- 'Amphicetus belongs to Cetotheriidae'
- 'Amphicticeps belongs to Ursidae'
- 'Amphictis belongs to Mustelidae'
- 'Amphicyanis belongs to Amphicyonidae'
- 'Amphicyon belongs to Amphicyonidae'
- 'Amphicyonidae belongs to Arctoidea'
- 'Amphidontidae belongs to Symmetrodonta'
- 'Amphilestes belongs to Amphilestinae'
- 'Amphilestinae was reranked as the family Amphilestidae and belongs to Triconodonta'
- 'Amphimerycidae belongs to Tylopoda'
- 'Amphimeryx belongs to Amphimerycidae'
- 'Amphimoschus belongs to Bovoidea'
- 'Amphipelargus belongs to Ergilornithidae'
- 'Amphiperatherium belongs to Didelphidae'
- 'Amphiprox belongs to Cervoidea'
- 'Amphisbaenidae belongs to Annulata'
- 'Amphisorex belongs to Soricidae'
- 'Amphitheriidae belongs to Eupantotheria'
- 'Amphitragulus belongs to Moschidae'
- 'Amphitriton belongs to Ambystomatidae'
- 'Amphiuma belongs to Amphiumidae'
- 'Amphiumidae belongs to Amphiumoidea'
- 'Amphiumoidea belongs to Urodeles'
- 'Amtosaurus belongs to Ankylosauridae'
- 'Amygdalodon belongs to Cetiosauridae'
- 'Amynodon belongs to Amynodontidae'
- 'Amynodontidae belongs to Rhinocerotoidea'
- 'Amynodontopsis belongs to Amynodontidae'
- 'Anacharsis belongs to Delphinidae'
- 'Anagale belongs to Anagalidae'
- 'Anagalida belongs to Eutheria'
- 'Anagalidae belongs to Anagalida'
- 'Anagalopsis belongs to Anagalidae'
- 'Analcimorphus belongs to Megalonychidae'
- 'Analcitherium belongs to Mylodontidae'
- 'Anancus belongs to Gomphotheriidae'
- 'Anapsida belongs to Reptilia'
- 'Anaptogale belongs to Anagalidae'
- 'Anarosaurus belongs to Pachypleuridae'
- 'Anaschisma [misspelled as Anaschima] belongs to Metoposauridae'
- 'Anastylops belongs to Arctostylopidae'
- 'Anatidae belongs to Anseriformes'
- 'Anatolictis belongs to Mustelidae'
- 'Anatosaurus belongs to Hadrosauridae'
- 'Anchiblarinella belongs to Soricidae'
- 'Anchiceratops belongs to Ceratopsidae'
- 'Anchilestes belongs to Anagalida'
- 'Anchisauridae belongs to Prosauropoda'
- 'Anchisaurus belongs to Anchisauridae'
- 'Anchitherium belongs to Equidae'
- 'Anchitherium (Hypohippus) was reranked as Hypohippus and belongs to Equidae'
- 'Anchitherium (Parahippus) was reranked as Parahippus and belongs to Equidae'
- 'Ancylocoelus belongs to Leontiniidae'
- 'Ancylotherium belongs to Chalicotheriidae'
- 'Andalgalornis belongs to Phorusrhacidae'
- 'Andegameryx belongs to Hypertragulidae'
- 'Andescynodon belongs to Traversodontidae'
- 'Andrewsarchus belongs to Mesonychidae'
- 'Andrewsornis belongs to Phorusrhacidae'
- 'Andrias belongs to Cryptobranchidae'
- 'Aneides belongs to Plethodontidae'
- 'Angelosaurus belongs to Caseidae'
- 'Angistorhinus belongs to Phytosauridae'
- 'Anglosuchus belongs to Pholidosauridae'
- 'Angolasaurus [misspelled as Angolosaurus] belongs to Mosasauridae'
- 'Angonisaurus belongs to Kannemeyeriidae'
- 'Anguidae belongs to Anguoidea'
- 'Anguis belongs to Anguidae'
- 'Anguoidea belongs to Diploglossa'
- 'Angustidens belongs to Soricidae'
- 'Anhimidae belongs to Anseriformes'
- 'Anhinga belongs to Anhingidae'
- 'Anhingidae belongs to Sulae'
- 'Anhuisaurus belongs to Lacertilia'
- 'Anictis belongs to Viverridae'
- 'Anictops belongs to Pseudictopidae'
- 'Aniliidae belongs to Anilioidea'
- 'Anilioidea belongs to Henophidia'
- 'Anilioides belongs to Boidae'
- 'Anisodelphis belongs to Platanistidae'
- 'Anisodontosaurus belongs to Trilophosauridae'
- 'Anisolambda belongs to Proterotheriidae'
- 'Anisonchus belongs to Periptychidae'
- 'Anisosiren belongs to Dugongidae'
- 'Anisotemnus belongs to Isotemnidae'
- 'Ankalagon belongs to Mesonychidae'
- 'Ankylosauria belongs to Ornithischia'
- 'Ankylosauridae belongs to Ankylosauria'
- 'Ankylosaurus belongs to Ankylosauridae'
- 'Annatherapsidus belongs to Moschorhinidae'
- 'Anniella belongs to Anguidae'
- 'Annulata belongs to Lacertilia'
- 'Anoglochis belongs to Cervidae'
- 'Anolis belongs to Iguanidae'
- 'Anomalophidae belongs to Colubroidea'
- 'Anomalophis belongs to Anomalophidae'
- 'Anomalopteryx belongs to Dinornithidae'
- 'Anomaluridae belongs to Anomaluroidea'
- 'Anomaluroidea belongs to Sciurognathi'
- 'Anomodon belongs to Diictodontidae'
- 'Anomoiodon belongs to Procolophonidae'
- 'Anomotherium belongs to Dugongidae'
- 'Anoplonassa belongs to Ziphiidae'
- 'Anoplosaurus belongs to Iguanodontidae'
- 'Anoplosuchus belongs to Estemmenosuchidae'
- 'Anoplotherium belongs to Anoplotheriidae'
- 'Anosteira belongs to Carettochelyidae'
- 'Anourosorex belongs to Soricidae'
- 'Anqingosaurus belongs to Chamaeleonidae'
- 'Anseriformes belongs to Neognathae'
- 'Antarctosaurus belongs to Titanosauridae'
- 'Anteosauridae belongs to Titanosuchia'
- 'Anteosaurus belongs to Anteosauridae'
- 'Antepithecus belongs to Interatheriidae'
- 'Antesorex belongs to Soricidae'
- 'Anthodon belongs to Pareiasauridae'
- 'Anthracobune belongs to Anthracobunidae'
- 'Anthracobunidae belongs to Moeritherioidea'
- 'Anthracobunodon belongs to Haplobunodontidae'
- 'Anthracochoerus belongs to Anthracotheriidae'
- 'Anthracodromeus belongs to Protorothyrididae'
- 'Anthracokeryx belongs to Anthracotheriidae'
- 'Anthracosauria belongs to Labyrinthodontia'
- 'Anthracosauridae belongs to Embolomeri'
- 'Anthracosaurus belongs to Anthracosauridae'
- 'Anthracosenex belongs to Anthracotheriidae'
- 'Anthracothema belongs to Anthracotheriidae'
- 'Anthracotheriidae belongs to Hippopotamoidea'
- 'Anthracotherium belongs to Anthracotheriidae'
- 'Anthropodyptes belongs to Spheniscidae'
- 'Anthropoidea belongs to Primates'
- 'Anthropornis belongs to Spheniscidae'
- 'Antiacodon belongs to Antiacodontinae'
- 'Antiacodontidae belongs to Artiodactyla'
- 'Antidorcas belongs to Bovidae'
- 'Antifer belongs to Cervidae'
- 'Antilocapra belongs to Antilocapridae'
- 'Antilocapridae belongs to Bovoidea'
- 'Antilope belongs to Bovidae'
- 'Antilope (Connochaetes) was reranked as Connochaetes and belongs to Bovidae'
- 'Antilope (Pantholops) was reranked as Pantholops and belongs to Bovidae'
- 'Antilospira belongs to Bovidae'
- 'Anuri is corrected as Anura and belongs to Lepospondyli'
- 'Aonyx belongs to Mustelidae'
- 'Apatemyidae belongs to Apatotheria'
- 'Apateon belongs to Branchiosauridae'
- 'Apatosauridae belongs to Sauropoda' according to P. M. Galton 1977
- 'Apatosaurus belongs to Diplodocidae'
- 'Apatotheria belongs to Eutheria'
- 'Apenophyseter belongs to Physeteridae'
- 'Apertotemporalis belongs to Chelonia'
- 'Aphanapteryx belongs to Rallidae'
- 'Aphaneramma belongs to Trematosauridae'
- 'Aphelops belongs to Rhinocerotidae'
- 'Aphrosaurus belongs to Elasmosauridae'
- 'Aploconodon belongs to Amphilestinae'
- 'Aplodontidae belongs to Aplodontoidea'
- 'Aplodontoidea belongs to Protrogomorpha'
- 'Apodi belongs to Apodiformes'
- 'Apodichelys [misspelled as Apodochelys] belongs to Pelomedusidae'
- 'Apodidae belongs to Apodi'
- 'Apodiformes belongs to Neognathae'
- 'Apodops belongs to Caeciliidae'
- 'Apodosauriscus belongs to Anguidae'
- 'Apriculus belongs to Artiodactyla'
- 'Aprotodon belongs to Hyracodontidae'
- 'Aptenodytes belongs to Spheniscidae'
- 'Apteribis belongs to Plataleidae'
- 'Apterygidae belongs to Apterygiformes'
- 'Apterygiformes belongs to Palaeognathae'
- 'Apteryx belongs to Apterygidae'
- 'Aptornis belongs to Aptornithidae'
- 'Aptornithidae [misspelled as Apterornithidae] belongs to Ralli'
- 'Aptychodon belongs to Plesiosauria'
- 'Apus belongs to Apodidae'
- 'Aquilavus belongs to Accipitridae'
- 'Araeodelphis belongs to Delphinidae'
- 'Araeosaurus belongs to Lacertilia'
- 'Araeoscelida belongs to Diapsida'
- 'Araeoscelidae belongs to Araeoscelida'
- 'Araeoscelis belongs to Araeoscelidae'
- 'Aralosaurus belongs to Hadrosauridae'
- 'Aramidae belongs to Grues'
- 'Aramornis belongs to Gruidae'
- 'Araripedactylus belongs to Ornithocheiridae'
- 'Araripesaurus belongs to Ornithocheiridae'
- 'Araripesuchus belongs to Uruguaysuchidae'
- 'Arcadia belongs to Rhytidosteidae'
- 'Archaenodon is corrected as Achaenodon and belongs to Helohyinae'
- 'Archaeoceti belongs to Cetacea'
- 'Archaeodelphis belongs to Cetacea'
- 'Archaeohippus belongs to Equidae'
- 'Archaeohyracidae belongs to Hegetotheroidea'
- 'Archaeohyrax belongs to Archaeohyracidae'
- 'Archaeolambda belongs to Archaeolambdidae'
- 'Archaeolambdidae belongs to Pantodonta'
- 'Archaeolemuridae belongs to Indrioidea'
- 'Archaeomeryx belongs to Leptomerycidae'
- 'Archaeonectrus belongs to Pliosauridae'
- 'Archaeophis belongs to Palaeophidae'
- 'Archaeophylus belongs to Interatheriidae'
- 'Archaeopithecidae belongs to Toxodontia'
- 'Archaeopithecus belongs to Archaeopithecidae'
- 'Archaeopteropus belongs to Pteropodidae'
- 'Archaeopterygidae belongs to Archaeopterygiformes'
- 'Archaeopterygiformes belongs to Archaeornithes'
- 'Archaeopteryx belongs to Archaeopterygidae'
- 'Archaeornithes belongs to Aves'
- 'Archaeornithomimus belongs to Ornithomimidae'
- 'Archaeospheniscus belongs to Spheniscidae'
- 'Archaeosyodon belongs to Brithopodidae'
- 'Archaeotherium belongs to Entelodontidae'
- 'Archaeothyris belongs to Ophiacodontidae'
- 'Archaeotriton belongs to Salamandridae'
- 'Archaeotrogon belongs to Archaeotrogonidae'
- 'Archaeotrogonidae belongs to Halcyones'
- 'Archegosauridae belongs to Eryopoidea'
- 'Archegosaurus belongs to Archegosauridae'
- 'Archelon belongs to Protostegidae'
- 'Archeria belongs to Archeriidae'
- 'Archeriidae belongs to Embolomeri'
- 'Archerpeton belongs to Protorothyrididae'
- 'Archosauria belongs to Archosauromorpha'
- 'Archosauromorpha belongs to Diapsida'
- 'Archosaurus belongs to Proterosuchidae'
- 'Arctamphicyon belongs to Amphicyonidae'
- 'Arctocephalus belongs to Otariidae'
- 'Arctocyonidae belongs to Condylarthra'
- 'Arctodus belongs to Ursidae'
- 'Arctognathus belongs to Gorgonopsidae'
- 'Arctoidea belongs to Carnivora'
- 'Arctomeles belongs to Mustelidae'
- 'Arctonyx belongs to Mustelidae'
- 'Arctops belongs to Gorgonopsidae'
- 'Arctostylopidae belongs to Notioprogonia'
- 'Arctostylops belongs to Arctostylopidae'
- 'Arctotitan belongs to Brontotheridae'
- 'Ardea belongs to Ardeidae'
- 'Ardeagrandis belongs to Ardeidae'
- 'Ardeidae belongs to Gruiformes'
- 'Ardeosauridae belongs to Nyctisaura'
- 'Ardeosaurus belongs to Ardeosauridae'
- 'Ardynia belongs to Hyracodontidae'
- 'Ardynictis belongs to Anagalida'
- 'Argentavis belongs to Teratornithidae'
- 'Argentinosuchus belongs to Stagnolepididae'
- 'Argillochelys belongs to Cheloniidae'
- 'Argillotherium is a subjective synonym of Oxyaena'
- 'Argyrocetus belongs to Rhabdosteidae'
- 'Argyrodyptes belongs to Procellariidae'
- 'Argyrohippus belongs to Notohippidae'
- 'Argyrohyus belongs to Tayassuidae'
- 'Argyrolambda belongs to Didolodontidae'
- 'Argyrosaurus belongs to Titanosauridae'
- 'Ariekanerpeton belongs to Discosauriscidae'
- 'Aristelliger belongs to Gekkonidae'
- 'Aristonectes belongs to Cryptoclididae'
- 'Aristosuchus belongs to Coeluridae'
- 'Arizonasaurus belongs to Erythrosuchidae'
- 'Arizonerpeton belongs to Nectridea'
- 'Arkanserpeton belongs to Dissorophidae'
- 'Arpadosaurus belongs to Anguidae'
- 'Arretosauridae belongs to Iguania'
- 'Arretosaurus belongs to Arretosauridae'
- 'Arretotherium belongs to Anthracotheriidae'
- 'Arrhinoceratops belongs to Ceratopsidae'
- 'Arsinoitheriidae belongs to Embrithopoda'
- 'Arsinotherium belongs to Arsinoitheriidae'
- 'Arthrodytes belongs to Spheniscidae'
- 'Artiodactyla belongs to Eutheria'
- 'Arvernoceros belongs to Cervidae'
- 'Asaphestera belongs to Tuditanidae'
- 'Ascaphidae belongs to Anura'
- 'Asiabradypus belongs to Ernanodontidae'
- 'Asiatosaurus belongs to Sauropoda'
- 'Asiatosuchus belongs to Crocodylidae'
- 'Asiostylops belongs to Arctostylopidae'
- 'Askeptosauridae belongs to Thalattosauria'
- 'Askeptosaurus belongs to Askeptosauridae'
- 'Asmithwoodwardia belongs to Didolodontidae'
- 'Asmithwoodwardia belongs to Protolipternidae'
- 'Asmodus belongs to Homalodotheriidae'
- 'Asphaerion belongs to Ranidae'
- 'Aspideretes belongs to Trionychidae'
- 'Aspidosaurus belongs to Dissorophidae'
- 'Astegotherium belongs to Dasypodidae'
- 'Asterostemma belongs to Glyptodontidae'
- 'Asthenoscapter belongs to Talpidae'
- 'Astraponotus belongs to Astrapotheriidae'
- 'Astrapotheria belongs to Eutheria'
- 'Astrapothericulus belongs to Astrapotheriidae'
- 'Astrapotheriidae belongs to Astrapotheria'
- 'Astrapotherium belongs to Astrapotheriidae'
- 'Astreptorhachis belongs to Dissorophidae'
- 'Astroconodon belongs to Triconodontidae'
- 'Astrodon belongs to Brachiosauridae'
- 'Atalonodon belongs to Tapiroidea'
- 'Atelidae belongs to Platyrrhini'
- 'Atelornithidae belongs to Coracii'
- 'Atilax belongs to Viverridae'
- 'Atlantosuchus belongs to Dyrosauridae'
- 'Atoposaurides is corrected as Atoposauridae and belongs to Mesosuchia'
- 'Atoposaurus belongs to Atoposauridae'
- 'Aublysodon belongs to Theropoda'
- 'Aulacephalodon belongs to Aulacephalodontidae'
- 'Aulacephalodontidae belongs to Pristerodontia'
- 'Aulophyseter [misspelled as Auiophyster] belongs to Physeteridae'
- 'Aumelasia belongs to Dichobunidae'
- 'Aureliachoerus belongs to Suidae'
- 'Australca belongs to Alcidae'
- 'Austrobrachyops belongs to Brachyopidae'
- 'Austrosaurus belongs to Brachiosauridae'
- 'Austrosqualodon [misspelled as Australosqualodon] belongs to Squalodontidae'
- 'Auxontodon belongs to Antiacodontinae'
- 'Avenantia belongs to Tapinocephalidae'
- 'Avimimus belongs to Theropoda'
- 'Avipes belongs to Podokesauridae'
- 'Avisaurus belongs to Theropoda'
- 'Axis belongs to Cervidae'
- 'Azendohsaurus belongs to Anchisauridae'
- 'Bachitherium belongs to Leptomerycidae'
- 'Bactrosaurus belongs to Hadrosauridae'
- 'Badistornis belongs to Aramidae'
- 'Badrostes belongs to Falconidae'
- 'Baena belongs to Baenidae'
- 'Baenidae belongs to Baenoidea'
- 'Baenoidea belongs to Cryptodira'
- 'Bagaceratops belongs to Protoceratopsidae'
- 'Bahariasaurus belongs to Megalosaurinidae'
- 'Baharijodon belongs to Trematochampsidae'
- 'Bainguidae belongs to Diploglossa'
- 'Bainguis belongs to Bainguidae'
- 'Balaena belongs to Balaenidae'
- 'Balaenicipitidae belongs to Ciconiiformes'
- 'Balaenodon belongs to Physeteridae'
- 'Balaenoptera belongs to Balaenopteridae'
- 'Balaenopteridae belongs to Mysticeti'
- 'Balaenotus belongs to Balaenidae'
- 'Balaenula belongs to Balaenidae'
- 'Balanadae is corrected as Balaenidae and belongs to Mysticeti'
- 'Balanerodus belongs to Alligatoridae'
- 'Baldwinonus belongs to Ophiacodontidae'
- 'Baluchitherium belongs to Rhinocerotidae'
- 'Baphetes belongs to Loxommatidae'
- 'Baptemys belongs to Dermatemydidae'
- 'Baptornis belongs to Baptornithidae'
- 'Baptornithidae belongs to Hesperornithiformes'
- 'Baranogale belongs to Mustelidae'
- 'Barapasaurus belongs to Cetiosauridae'
- 'Barasaurus belongs to Nyctiphruretidae'
- 'Bargmannia belongs to Dicamptodontidae'
- 'Baroqueosuchus belongs to Protosuchidae'
- 'Barosaurus belongs to Diplodocidae'
- 'Barsboldia belongs to Hadrosauridae'
- 'Barylambda belongs to Barylambdidae'
- 'Barylambdidae belongs to Pantodonta'
- 'Barysoma belongs to Kannemeyeriidae'
- 'Barytheriidae belongs to Barytherioidea'
- 'Barytherioidea belongs to Proboscidea'
- 'Barytherium belongs to Barytheriidae'
- 'Basalina belongs to Tillodontia'
- 'Bashkirosaurus belongs to Archegosauridae'
- 'Basicranodon belongs to Varanopseidae'
- 'Basilemys belongs to Dermatemydidae'
- 'Basileosaurus belongs to Sclerosauridae'
- 'Basilosauridae belongs to Archaeoceti'
- 'Basilosaurus belongs to Basilosauridae'
- 'Bassariscops belongs to Canidae'
- 'Bassariscus belongs to Procyonidae'
- 'Batagur belongs to Emydidae'
- 'Bathornis belongs to Bathornithidae'
- 'Bathornithidae belongs to Cariamae'
- 'Bathyergidae belongs to Bathygeromorpha'
- 'Bathyergomorpha [misspelled as Bathygeromorpha] belongs to Hystricognathi'
- 'Bathygnathus belongs to Sphenacodontidae'
- 'Batrachiderpeton belongs to Keraterpetontidae'
- 'Batrachosauroides belongs to Batrachosauroididae'
- 'Batrachosauroididae belongs to Proteoidea'
- 'Batrachosaurus belongs to Brachyopidae'
- 'Batrachoseps belongs to Plethodontidae'
- 'Batropetes belongs to Batropetidae'
- 'Batropetidae belongs to Captorhinomorpha'
- 'Bauria belongs to Bauriidae'
- 'Bauriidae belongs to Therocephalia'
- 'Baurusuchidae belongs to Mesosuchia'
- 'Baurusuchus belongs to Baurusuchidae'
- 'Bavarisauridae belongs to Nyctisaura'
- 'Bavarisaurus belongs to Bavarisauridae'
- 'Beatragus belongs to Bovidae'
- 'Beckiasorex belongs to Soricidae'
- 'Becklesius belongs to Paramacellodidae'
- 'Behemotops belongs to Desmostylidae'
- 'Belemnoziphius belongs to Ziphiidae'
- 'Belesodon belongs to Chiniquodontidae'
- 'Belodon belongs to Phytosauridae'
- 'Belosphys belongs to Delphinidae'
- 'Bemalambda belongs to Bemalambdidae'
- 'Bemalambdidae belongs to Pantodonta'
- 'Benaratherium belongs to Hyracodontidae'
- 'Benicerus belongs to Bovidae'
- 'Benthosuchidae belongs to Capitosauroidea'
- 'Benthosuchus belongs to Benthosuchidae'
- 'Beremendia belongs to Soricidae'
- 'Bergisuchus belongs to Baurusuchidae'
- 'Bernissartia belongs to Bernissartiidae'
- 'Bernissartidae is corrected as Bernissartiidae and belongs to Mesosuchia'
- 'Bernissartidae is corrected as Bernissartiidae and belongs to Mesosuchia'
- 'Betasuchus belongs to Ornithomimidae'
- 'Biarmosuchidae belongs to Eotitanosuchia'
- 'Biarmosuchus belongs to Biarmosuchidae'
- 'Bibos belongs to Bovidae'
- 'Bienotherium belongs to Tritylodontidae'
- 'Bienotheroides belongs to Tritylodontidae'
- 'Birgerbohlinia belongs to Giraffidae'
- 'Bishanopliosaurus belongs to Pliosauridae'
- 'Bison belongs to Bovidae'
- 'Blancocamelus belongs to Camelidae'
- 'Blarina belongs to Soricidae'
- 'Blarinella belongs to Soricidae'
- 'Blarinoides belongs to Soricidae'
- 'Blastocerus belongs to Cervidae'
- 'Blastomeryx belongs to Moschidae'
- 'Blickomylus belongs to Camelidae'
- 'Blikanasauridae belongs to Prosauropoda'
- 'Blikanasaurus belongs to Blikanasauridae'
- 'Blinasaurus belongs to Brachyopidae'
- 'Boavus belongs to Boidae'
- 'Bobbschaefferia belongs to Didelphidae'
- 'Bocatherium belongs to Tritylodontidae'
- 'Bogdia belongs to Pantolestidae'
- 'Bohlinia belongs to Giraffidae'
- 'Boidae belongs to Booidea'
- 'Boii belongs to Tuditanidae'
- 'Bolosauridae belongs to Captorhinomorpha'
- 'Bolosaurus belongs to Bolosauridae'
- 'Bomburia is a subjective synonym of Ellipsodon'
- 'Booidea belongs to Henophidia'
- 'Bootherium belongs to Bovidae'
- 'Borealestes belongs to Docodontidae'
- 'Boremys belongs to Neurankylidae'
- 'Boreopelta belongs to Rhytidosteidae'
- 'Boreopricea belongs to Prolacertidae'
- 'Boreosaurus belongs to Brachyopidae'
- 'Borissiakia belongs to Chalicotheriidae'
- 'Borophagus belongs to Canidae'
- 'Bos belongs to Bovidae'
- 'Boselaphus belongs to Bovidae'
- 'Botauroides belongs to Primobucconidae'
- 'Botaurus belongs to Ardeidae'
- 'Bothremys belongs to Pelomedusidae'
- 'Bothriceps belongs to Brachyopidae'
- 'Bothriodon belongs to Anthracotheriidae'
- 'Bothriogenys belongs to Anthracotheriidae'
- 'Bothriospondylus belongs to Brachiosauridae'
- 'Bovidae belongs to Bovoidea'
- 'Bovoidea belongs to Pecora'
- 'Brachauchenius belongs to Pliosauridae'
- 'Brachiosauridae belongs to Sauropoda'
- 'Brachiosaurus belongs to Brachiosauridae'
- 'Brachycormus belongs to Salamandridae'
- 'Brachycyon belongs to Amphicyonidae'
- 'Brachydiastematherium belongs to Brontotheridae'
- 'Brachydiceratherium belongs to Rhinocerotidae'
- 'Brachylophosaurus belongs to Hadrosauridae'
- 'Brachynasua belongs to Procyonidae'
- 'Brachyodus belongs to Anthracotheriidae'
- 'Brachyopidae belongs to Brachiopoidea'
- 'Brachyopoidea [misspelled as Brachiopoidea] belongs to Temnospondyli'
- 'Brachyops belongs to Brachyopidae'
- 'Brachyopsigale belongs to Mustelidae'
- 'Brachypodosaurus belongs to Nodosauridae'
- 'Brachypotherium belongs to Rhinocerotidae'
- 'Brachyprosopus belongs to Dicynodontia'
- 'Brachyprotoma belongs to Mustelidae'
- 'Brachypsalis belongs to Mustelidae'
- 'Brachyramphus belongs to Alcidae'
- 'Brachyrhinodon belongs to Sphenodontidae'
- 'Brachystelechidae belongs to Microbrachomorpha'
- 'Brachystelechus belongs to Brachystelechidae'
- 'Brachystephanus belongs to Oldfieldthomasiidae'
- 'Brachytherium belongs to Proterotheriidae'
- 'Brachyuraniscus belongs to Dicynodontia'
- 'Brachyuranochampsa belongs to Crocodylidae'
- 'Brachyzostrodon belongs to Morganucodontidae'
- 'Bradycneme belongs to Theropoda'
- 'Bradysaurus belongs to Pareiasauridae'
- 'Bramatherium belongs to Giraffidae'
- 'Brancasaurus belongs to Elasmosauridae'
- 'Branchierpeton belongs to Micromelerpetontidae'
- 'Branchiosauridae belongs to Eryopoidea'
- 'Branchiosaurus belongs to Branchiosauridae'
- 'Brandmayria belongs to Notoungulata'
- 'Bransateryx belongs to Boidae'
- 'Brasileosaurus belongs to Mesosauridae'
- 'Breagyps belongs to Vulturidae'
- 'Bretzia belongs to Cervidae'
- 'Brevidorsum belongs to Dissorophidae'
- 'Breviodon belongs to Lophialetidae'
- 'Brimosaurus belongs to Plesiosauria'
- 'Brithopodidae belongs to Titanosuchia'
- 'Brithopus belongs to Brithopodidae'
- 'Broilia belongs to Emydidae'
- 'Broiliana belongs to Ursidae'
- 'Broiliellus belongs to Dissorophidae'
- 'Broilius belongs to Dicynodontia'
- 'Brontops belongs to Brontotheridae'
- 'Brontotheridae belongs to Titanotheriomorpha'
- 'Broomia belongs to Millerettidae'
- 'Broomulus belongs to Lydekkerinidae'
- 'Brouffia belongs to Protorothyrididae'
- 'Bruktererpeton belongs to Gephyrostegidae'
- 'Bryanpattersonia belongs to Archaeohyracidae'
- 'Bubalus belongs to Bovidae'
- 'Bucapra belongs to Bovidae'
- 'Bucconidae belongs to Coracii'
- 'Bucerotidae belongs to Bucerotiformes'
- 'Bucerotiformes belongs to Neognathae'
- 'Bucorvus belongs to Bucerotidae'
- 'Budorcas belongs to Bovidae'
- 'Bufo belongs to Bufonidae'
- 'Bufonidae belongs to Anura'
- 'Bugtitherium belongs to Anthracotheriidae'
- 'Buisnictis belongs to Mustelidae'
- 'Bukobaja belongs to Capitosauridae'
- 'Bumbanius belongs to Nyctitheriidae'
- 'Bunodentus belongs to Helohyidae'
- 'Bunohyrax belongs to Pliohyracidae'
- 'Bunolistriodon belongs to Suidae'
- 'Bunomeryx belongs to Artiodactyla'
- 'Bunophorus belongs to Artiodactyla'
- 'Burhinidae belongs to Charadriiformes'
- 'Burhinus belongs to Burhinidae'
- 'Burnetia belongs to Burnetiidae'
- 'Burnetidae is corrected as Burnetiidae and belongs to Gorgonopsia'
- 'Burtensia belongs to Procolophonidae'
- 'Burtinopsis belongs to Balaenopteridae'
- 'Buteo belongs to Accipitridae'
- 'Butorides belongs to Ardeidae'
- 'Butselia belongs to Plesiosoricidae'
- 'Buxobune belongs to Dichobunidae'
- 'Buxolestes belongs to Pantolestidae'
- 'Buzulukia belongs to Kotlassidae'
- 'Bystrowiana belongs to Kotlassidae'
- 'Cabassous belongs to Dasypodidae'
- 'Cacops belongs to Dissorophidae'
- 'Cadurceryx belongs to Boidae'
- 'Cadurcoboa belongs to Boidae'
- 'Cadurcodon belongs to Amynodontidae'
- 'Cadurcogekko belongs to Gekkonidae'
- 'Cadurcotherium belongs to Amynodontidae'
- 'Caeciliidae belongs to Gymnophiona'
- 'Caenagnathus belongs to Oviraptoridae'
- 'Caenolambda belongs to Pantolambdidae'
- 'Caenolophus belongs to Hyracodontidae'
- 'Caenophidia belongs to Serpentes'
- 'Caenophilus belongs to Interatheriidae'
- 'Caerorhachidae belongs to Temnospondyli'
- 'Caerorhachis belongs to Caerorhachidae'
- 'Calamagras belongs to Boidae'
- 'Calcarichelys belongs to Protostegidae'
- 'Calligenethlon belongs to Eogyrinidae'
- 'Callophoca belongs to Phocidae'
- 'Callopistes belongs to Teiidae'
- 'Callorhinus belongs to Otariidae'
- 'Callovosaurus belongs to Iguanodontidae'
- 'Callowayosaurus belongs to Elasmosauridae'
- 'Calodontotherium belongs to Isotemnidae'
- 'Calonectris belongs to Procellariidae'
- 'Caluromys belongs to Didelphidae'
- 'Camarasauridae belongs to Sauropoda'
- 'Camarasaurus belongs to Camarasauridae'
- 'Camargomendesia belongs to Oldfieldthomasiidae'
- 'Cambayella belongs to Bovidae'
- 'Camelidae belongs to Cameloidea'
- 'Cameloidea belongs to Tylopoda'
- 'Camelops belongs to Camelidae'
- 'Camelotia belongs to Melanorosauridae'
- 'Camelus belongs to Camelidae'
- 'Campephilus belongs to Picidae'
- 'Camptosaurus belongs to Iguanodontidae'
- 'Campylodoniscus belongs to Titanosauridae'
- 'Campylognathoides belongs to Campylognathoididae'
- 'Campylognathoididae belongs to Rhamphorhynchoidea'
- 'Candelaria belongs to Procolophonidae'
- 'Canidae belongs to Arctoidea'
- 'Canimartes belongs to Mustelidae'
- 'Canis belongs to Canidae'
- 'Canis (Epicyon) was reranked as Epicyon and belongs to Canidae'
- 'Canthumeryx belongs to Cervoidea'
- 'Capellineosuchus belongs to Metriorhynchidae'
- 'Capellirallus belongs to Rallidae'
- 'Capitonidae belongs to Piciformes'
- 'Capitonides belongs to Capitonidae'
- 'Capitosauridae belongs to Capitosauroidea'
- 'Capitosauroidea belongs to Temnospondyli'
- 'Capra belongs to Bovidae'
- 'Capreolus belongs to Cervidae'
- 'Caprimulgidae belongs to Caprimulgiformes'
- 'Caprimulgiformes belongs to Neognathae'
- 'Capromeryx belongs to Antilocapridae'
- 'Capromyidae belongs to Octodontoidea'
- 'Captorhinida belongs to Anapsida'
- 'Captorhinidae belongs to Captorhinomorpha'
- 'Captorhinikos belongs to Captorhinidae'
- 'Captorhinoides belongs to Captorhinidae'
- 'Captorhinomorpha belongs to Captorhinida'
- 'Captorhinus belongs to Captorhinidae'
- 'Carbonoherpeton belongs to Eogyrinidae'
- 'Carcharodontosaurus belongs to Megalosaurinidae'
- 'Cardiocephalus belongs to Gymnarthridae'
- 'Caretta belongs to Cheloniidae'
- 'Carettochelyidae belongs to Trionychoidea'
- 'Carettochelys belongs to Carettochelyidae'
- 'Cariamae belongs to Gruiformes'
- 'Cariamidae belongs to Cariamae'
- 'Caribosiren belongs to Dugongidae'
- 'Carnivora belongs to Eutheria'
- 'Carodnia belongs to Carodniidae'
- 'Carodniidae belongs to Xenungulata'
- 'Caroloameghiana belongs to Didelphidae'
- 'Carolozittelia belongs to Pyrotheriidae'
- 'Carpocyon belongs to Canidae'
- 'Carpolestidae belongs to Plesiadapoidea'
- 'Carposorex belongs to Soricidae'
- 'Carrolla belongs to Brachystelechidae'
- 'Carsioptychus belongs to Periptychidae'
- 'Carsosaurus belongs to Aigialosauridae'
- 'Carteremys belongs to Pelomedusidae'
- 'Cartictops belongs to Pseudictopidae'
- 'Casea belongs to Caseidae'
- 'Caseidae belongs to Pelycosauria'
- 'Caseoides belongs to Caseidae'
- 'Caseopsis belongs to Caseidae'
- 'Caspiodontornis belongs to Pelagornithidae'
- 'Castoridae belongs to Castorimorpha'
- 'Castorimorpha belongs to Sciurognathi'
- 'Casuariidae belongs to Casuariiformes'
- 'Casuariiformes belongs to Palaeognathae'
- 'Casuarius belongs to Casuariidae'
- 'Catagonus belongs to Tayassuidae'
- 'Catarrhini belongs to Anthropoidea'
- 'Cathartornis belongs to Teratornithidae'
- 'Caudiverbera belongs to Leptodactylidae'
- 'Caviidae belongs to Cavioidea'
- 'Cavioidea belongs to Caviomorpha'
- 'Caviomorpha belongs to Hystricognathi'
- 'Cebidae belongs to Platyrrhini'
- 'Cebochoeridae belongs to Entelodontoidea'
- 'Cebochoerus belongs to Cebochoeridae'
- 'Celestus belongs to Anguidae'
- 'Centrosaurus belongs to Ceratopsidae'
- 'Cephalerpeton belongs to Protorothyrididae'
- 'Cephalogale belongs to Ursidae'
- 'Cephalophus belongs to Bovidae'
- 'Cephalotropis belongs to Cetotheriidae'
- 'Cepphus belongs to Alcidae'
- 'Cerataelurus belongs to Dicynodontia'
- 'Ceratomeryx belongs to Antilocapridae'
- 'Ceratomorpha belongs to Moropomorpha'
- 'Ceratophrynidae belongs to Anura'
- 'Ceratophrys belongs to Ceratophrynidae'
- 'Ceratopsia belongs to Ornithischia'
- 'Ceratopsidae belongs to Ceratopsia'
- 'Ceratosauridae belongs to Theropoda'
- 'Ceratosaurus belongs to Ceratosauridae'
- 'Ceratosuchus belongs to Alligatoridae'
- 'Ceratotherium belongs to Rhinocerotidae'
- 'Cercopithecidae belongs to Cercopithecoidea'
- 'Cercopithecoidea belongs to Catarrhini'
- 'Cerdocyon belongs to Canidae'
- 'Ceresiosaurus belongs to Nothosauridae'
- 'Cernictis belongs to Mustelidae'
- 'Cerorhinca belongs to Alcidae'
- 'Cerritosaurus belongs to Proterochampsidae'
- 'Cervalces belongs to Cervidae'
- 'Cervavitulus belongs to Cervidae'
- 'Cervavitus belongs to Cervidae'
- 'Cervidae belongs to Cervoidea'
- 'Cervoceros belongs to Cervidae'
- 'Cervoidea belongs to Pecora'
- 'Cervulus belongs to Cervidae'
- 'Cervus belongs to Cervidae'
- 'Cetacea belongs to Eutheria'
- 'Ceterhinops belongs to Delphinidae'
- 'Cetiosauridae belongs to Sauropoda'
- 'Cetiosauriscus belongs to Diplodocidae'
- 'Cetiosaurus belongs to Cetiosauridae'
- 'Cetotheriinae was reranked as the family Cetotheriidae and belongs to Mysticeti'
- 'Cetotheriomorphus [misspelled as Cetotheriomorphis] belongs to Cetotheriidae'
- 'Cetotheriopsis belongs to Cetotheriidae'
- 'Cetotherium belongs to Cetotheriidae'
- 'Cetotherium (Eucetotherium) was reranked as Eucetotherium and belongs to Cetotheriidae'
- 'Cetotherium (Plesiocetopsis) was reranked as Plesiocetopsis and belongs to Physeteridae'
- 'Chaenohyus belongs to Tayassuidae'
- 'Chaeropotamus is corrected as Choeropotamus and belongs to Choeropotamidae'
- 'Chaetophractus belongs to Dasypodidae'
- 'Chailicyon belongs to Canidae'
- 'Chalcides belongs to Scincidae'
- 'Chalcosaurus belongs to Lanthanosuchidae'
- 'Chalicotheriidae belongs to Chalicotherioidea'
- 'Chalicotherium belongs to Chalicotheriidae'
- 'Chaliminia belongs to Tritheledontidae'
- 'Chamaeleo belongs to Chamaeleonidae'
- 'Chamaeleonidae belongs to Iguania'
- 'Chamops belongs to Teiidae'
- 'Champsodelphis belongs to Acrodelphidae'
- 'Champsosauridae belongs to Choristodera'
- 'Champsosaurus belongs to Champsosauridae'
- 'Chanaresuchus belongs to Proterochampsidae'
- 'Chanaria belongs to Kannemeyeriidae'
- 'Changisaurus belongs to Amphisbaenidae'
- 'Changjiangosaurus belongs to Lacertilia'
- 'Chaohusaurus [misspelled as Chaosaurus] belongs to Omphalosauridae'
- 'Chapalmalania belongs to Procyonidae'
- 'Charactosuchus belongs to Crocodylidae'
- 'Charadriidae belongs to Charadriiformes'
- 'Charadriiformes belongs to Neognathae'
- 'Charina belongs to Boidae'
- 'Chasicotatus belongs to Dasypodidae'
- 'Chasicotherium belongs to Homalodotheriidae'
- 'Chasmaporthetes belongs to Hyaenidae'
- 'Chasmatosaurus belongs to Proterosuchidae'
- 'Chasmatosuchus belongs to Proterosuchidae'
- 'Chasmosaurus belongs to Ceratopsidae'
- 'Chasmotherium belongs to Tapiroidea'
- 'Cheilophis belongs to Boidae'
- 'Cheirogaleidae belongs to Lorisoidea'
- 'Chelidae belongs to Pleurodira'
- 'Cheliderpeton belongs to Eryopidae'
- 'Chelodina belongs to Chelidae'
- 'Chelonia belongs to Cheloniidae'
- 'Chelonii is corrected as Chelonia and belongs to Testudinata'
- 'Cheloniidae belongs to Chelonioidea'
- 'Chelonioidea belongs to Cryptodira'
- 'Chelosphargis belongs to Protostegidae'
- 'Chelotriton belongs to Salamandridae'
- 'Chelus belongs to Chelidae'
- 'Chelycarapookidae belongs to Chelonia'
- 'Chelycarapookus belongs to Chelycarapookidae'
- 'Chelydra belongs to Chelydridae'
- 'Chelydridae belongs to Testudinoidea'
- 'Chelydrops belongs to Chelydridae'
- 'Chelydropsis belongs to Chelydridae'
- 'Chelyoposuchus belongs to Placodontia'
- 'Chemositia belongs to Chalicotheriidae'
- 'Cheneosaurus belongs to Hadrosauridae'
- 'Chengyuchelys belongs to Pleurosternidae'
- 'Chenoprosopus belongs to Cochleosauridae'
- 'Cherminotus belongs to Lanthanotidae'
- 'Cherminsaurus belongs to Teiidae'
- 'Chialingosaurus belongs to Stegosauridae'
- 'Chianshania belongs to Anagalidae'
- 'Chiayusaurus belongs to Euhelopodidae'
- 'Chiayusuchus belongs to Stomatosuchidae'
- 'Chienkosaurus belongs to Ceratosauridae'
- 'Chigutisauridae belongs to Brachiopoidea'
- 'Chilantaisaurus belongs to Theropoda'
- 'Chilingosaurus belongs to Varanidae'
- 'Chilotherium belongs to Rhinocerotidae'
- 'Chinchillidae belongs to Chinchilloidea'
- 'Chinchilloidea belongs to Caviomorpha'
- 'Chinemys belongs to Emydidae'
- 'Chingkankousaurus belongs to Megalosauridae'
- 'Chiniquodon belongs to Chiniquodontidae'
- 'Chiniquodontidae belongs to Chiniquodontoidea'
- 'Chiniquodontoidea belongs to Eucynodontia'
- 'Chioglossa belongs to Salamandridae'
- 'Chionididae belongs to Charadriiformes'
- 'Chironectes belongs to Didelphidae'
- 'Chiroptera belongs to Eutheria'
- 'Chirostenotes belongs to Elmisauridae'
- 'Chisternon belongs to Baenidae'
- 'Chitra belongs to Trionychidae'
- 'Chitracephalus belongs to Chelonia'
- 'Chlamyphorus belongs to Dasypodidae'
- 'Chleuastochoerus belongs to Suidae'
- 'Chlorotalpa belongs to Chrysochloridae'
- 'Choerolophodon belongs to Gomphotheriidae'
- 'Choeromeryx belongs to Anthracotheriidae'
- 'Choeropotamidae belongs to Entelodontoidea'
- 'Chomatobatrachus belongs to Lydekkerinidae'
- 'Chometokadmon belongs to Sphenodontidae'
- 'Chonecetus belongs to Cetacea'
- 'Choneziphius belongs to Ziphiidae'
- 'Choristodera belongs to Diapsida'
- 'Chorlakkia belongs to Dichobunidae'
- 'Chorobates belongs to Dasypodidae'
- 'Chroniosaurus belongs to Chroniosuchidae'
- 'Chroniosuchidae belongs to Anthracosauria'
- 'Chroniosuchus belongs to Chroniosuchidae'
- 'Chrysemys belongs to Emydidae'
- 'Chrysemys montolivensis belongs to Chrysemys' according to Roman 1897
- 'Chrysochloridae belongs to Zalambdodonta'
- 'Chrysochloris belongs to Chrysochloridae'
- 'Chrysotriton belongs to Dicamptodontidae'
- 'Chthomaloporus belongs to Brithopodidae'
- 'Chthonosaurus belongs to Moschorhinidae'
- 'Chubutisaurus belongs to Titanosauridae'
- 'Chubutodyptes belongs to Spheniscidae'
- 'Chunga belongs to Cariamidae'
- 'Chungkingosaurus belongs to Stegosauridae'
- 'Ciconiidae belongs to Ciconiiformes'
- 'Ciconiiformes belongs to Neognathae'
- 'Ciconiopsis belongs to Ciconiiformes'
- 'Cimolopterygidae belongs to Charadriiformes'
- 'Circamustela belongs to Mustelidae'
- 'Cistecephalidae belongs to Diictodontia'
- 'Civettictis belongs to Viverridae'
- 'Clamorosaurus belongs to Eryopidae'
- 'Clamydosaurus belongs to Agamidae'
- 'Claosaurus belongs to Hadrosauridae'
- 'Clapasorex belongs to Soricidae'
- 'Clarazia belongs to Claraziidae'
- 'Claraziidae belongs to Thalattosauria'
- 'Clarencea belongs to Thecodontia'
- 'Claudiosauridae belongs to Sauropterygia'
- 'Claudiosaurus belongs to Claudiosauridae'
- 'Clelandina belongs to Gorgonopsidae'
- 'Clemmydopsis belongs to Emydidae'
- 'Clemmys belongs to Emydidae'
- 'Clepsydrops belongs to Ophiacodontidae'
- 'Clevosaurus [misspelled as Glevosaurus] belongs to Sphenodontidae'
- 'Clidastes belongs to Mosasauridae'
- 'Climacoceras belongs to Palaeomerycidae'
- 'Clotho (Bitis) was reranked as Bitis and belongs to Viperidae'
- 'Cnemidophorus belongs to Teiidae'
- 'Cochilius belongs to Interatheriidae'
- 'Cochleosauridae belongs to Edopoidea'
- 'Cochleosaurus belongs to Cochleosauridae'
- 'Cochlops belongs to Glyptodontidae'
- 'Cocomyidae belongs to Ctenodactyloidea'
- 'Cocytinus belongs to Lysorophidae'
- 'Coelodonta belongs to Rhinocerotidae'
- 'Coelophysis belongs to Podokesauridae'
- 'Coelosaurus belongs to Ornithomimidae'
- 'Coelostegus belongs to Protorothyrididae'
- 'Coelostylodon belongs to Isotemnidae'
- 'Coelosuchus belongs to Goniophididae'
- 'Coeluridae belongs to Theropoda'
- 'Coeluroides belongs to Theropoda'
- 'Coelurosauravidae belongs to Diapsida'
- 'Coelurosauravus belongs to Coelurosauravidae'
- 'Coelurus belongs to Coeluridae'
- 'Coelutaetus belongs to Dasypodidae'
- 'Colbertia belongs to Oldfieldthomasiidae'
- 'Colbertosaurus belongs to Traversodontidae'
- 'Coleonyx belongs to Gekkonidae'
- 'Coliidae belongs to Coliiformes'
- 'Coliiformes belongs to Neognathae'
- 'Colius belongs to Coliidae'
- 'Colobomycter belongs to Pelycosauria'
- 'Colombitheriidae belongs to Pyrotheria'
- 'Colombitherium belongs to Colombitheriidae'
- 'Colombophis belongs to Aniliidae'
- 'Coloraderpeton belongs to Ophiderpetontidae'
- 'Coloradia belongs to Anchisauridae'
- 'Colosteidae belongs to Colosteoidea'
- 'Colosteoidea belongs to Temnospondyli'
- 'Colosteus belongs to Colosteidae'
- 'Colpodon belongs to Leontiniidae'
- 'Colpodontosaurus belongs to Necrosauridae'
- 'Coluber belongs to Colubridae'
- 'Colubridae belongs to Colubroidea'
- 'Colubrifer belongs to Eolacertilia'
- 'Colubroidea belongs to Caenophidia'
- 'Columba belongs to Columbidae'
- 'Columbidae belongs to Columbiformes'
- 'Columbiformes belongs to Neognathae'
- 'Colymboides belongs to Gaviidae'
- 'Comodactylus belongs to Rhamphorhynchidae'
- 'Comonecturoides belongs to Urodeles'
- 'Compsemys belongs to Neurankylidae'
- 'Compsodon belongs to Dicynodontia'
- 'Compsognathidae belongs to Theropoda'
- 'Compsognathus belongs to Compsognathidae'
- 'Compsosuchus belongs to Theropoda'
- 'Conacodon belongs to Periptychidae'
- 'Condylarthra belongs to Eutheria'
- 'Condylura belongs to Talpidae'
- 'Conepatus belongs to Mustelidae'
- 'Coniasaurus belongs to Aigialosauridae'
- 'Conicodontosaurus belongs to Lacertilia'
- 'Coniophis belongs to Aniliidae'
- 'Coniornis belongs to Hesperornidae'
- 'Conjunctio belongs to Dissorophidae'
- 'Contogenys belongs to Scincidae'
- 'Contritosaurus belongs to Procolophonidae'
- 'Conuropsis belongs to Psittacidae'
- 'Convallisodon belongs to Pastoralodontidae'
- 'Coona belongs to Didelphidae'
- 'Cophocetus belongs to Cetotheriidae'
- 'Coracii belongs to Coraciiformes'
- 'Coraciidae belongs to Coracii'
- 'Coraciiformes belongs to Neognathae'
- 'Cordicephalus belongs to Pipidae'
- 'Cordylidae belongs to Leptoglossa'
- 'Cordylodon belongs to Dimylidae'
- 'Cormocyon belongs to Canidae'
- 'Cornwallius belongs to Desmostylidae'
- 'Corosaurus belongs to Cymatosauridae'
- 'Corsochelys belongs to Cheloniidae'
- 'Corvidae belongs to Passeriformes'
- 'Corvus belongs to Corvidae'
- 'Coryphodontidae belongs to Pantodonta'
- 'Corythosaurus belongs to Hadrosauridae'
- 'Corytophanes belongs to Iguanidae'
- 'Cosesaurus belongs to Prolacertidae'
- 'Cosmochelys belongs to Dermochelyidae'
- 'Costasaurus belongs to Lacertilia'
- 'Coturnicops belongs to Rallidae'
- 'Cotylorhynchus belongs to Caseidae'
- 'Cracidae belongs to Galliformes'
- 'Cramauchenia belongs to Macraucheniidae'
- 'Crapartinella belongs to Crapartinellidae'
- 'Crapartinellidae belongs to Therocephalia'
- 'Craspedochelys belongs to Plesiochelyidae'
- 'Craspedodon belongs to Iguanodontidae'
- 'Crassigyrinus belongs to Labyrinthodontia'
- 'Craterogale belongs to Mustelidae'
- 'Craterosaurus belongs to Stegosauridae'
- 'Creccoides belongs to Rallidae'
- 'Creodonta was reranked as a order and belongs to Eutheria'
- 'Cricodon belongs to Trirachodontidae'
- 'Cricotus belongs to Archeriidae'
- 'Crinifer belongs to Musophagidae'
- 'Crinodon belongs to Tuditanidae'
- 'Criorhynchus belongs to Ornithocheiridae'
- 'Criotherium belongs to Bovidae'
- 'Crivadiatherium belongs to Arsinoitheriidae'
- 'Crocidosorex belongs to Soricidae'
- 'Crocidura belongs to Soricidae'
- 'Crocodilaemus belongs to Pholidosauridae'
- 'Crocodilia is corrected as Crocodylia and belongs to Archosauria'
- 'Crocodylidae belongs to Eusuchia'
- 'Crocodylus belongs to Crocodylidae'
- 'Cromptodon belongs to Galesauridae'
- 'Crossarchus belongs to Viverridae'
- 'Crossochelys belongs to Meiolaniidae'
- 'Crossotelos belongs to Urocordylidae'
- 'Crotalus belongs to Viperidae'
- 'Crotaphytus belongs to Iguanidae'
- 'Cryobatrachus belongs to Lydekkerinidae'
- 'Cryptobranchidae belongs to Cryptobranchoidea'
- 'Cryptobranchoidea belongs to Urodeles'
- 'Cryptobranchus belongs to Cryptobranchidae'
- 'Cryptoclididae belongs to Plesiosauroidea'
- 'Cryptocynodon belongs to Dicynodontia'
- 'Cryptodira belongs to Chelonia'
- 'Cryptodraco belongs to Nodosauridae'
- 'Cryptomeryx belongs to Gelocidae'
- 'Cryptopithecus belongs to Pantolestidae'
- 'Cryptotis belongs to Soricidae'
- 'Crypturellus belongs to Tinamidae'
- 'Ctenerpeton belongs to Urocordylidae'
- 'Cteniogenys belongs to Kuehneosauridae'
- 'Cteniosaurus belongs to Oudenodontidae'
- 'Ctenochasma belongs to Ctenochasmatidae'
- 'Ctenochasmatidae belongs to Pterodactyloidea'
- 'Ctenochelys belongs to Toxochelyidae'
- 'Ctenodactylidae belongs to Ctenodactyloidea'
- 'Ctenodactyloidea belongs to Sciurognathi'
- 'Ctenomyidae belongs to Octodontoidea'
- 'Ctenosaura belongs to Iguanidae'
- 'Ctenosauriscidae belongs to Thecodontia'
- 'Ctenosauriscus belongs to Ctenosauriscidae'
- 'Ctenospondylus belongs to Sphenacodontidae'
- 'Cuculidae belongs to Cuculiformes'
- 'Cuculiformes belongs to Neognathae'
- 'Cullinia belongs to Macraucheniidae'
- 'Cunampaia belongs to Cunampaiidae'
- 'Cunampaiidae belongs to Cariamae'
- 'Cuon belongs to Canidae'
- 'Cuora belongs to Emydidae'
- 'Cursoricoccyx belongs to Cuculidae'
- 'Cuvieronius belongs to Gomphotheriidae'
- 'Cuyosuchus belongs to Erythrosuchidae'
- 'Cyamodontidae belongs to Placodontia'
- 'Cyamodus belongs to Cyamodontidae'
- 'Cyclanorbis belongs to Trionychidae'
- 'Cycloderma belongs to Trionychidae'
- 'Cyclotosaurus belongs to Capitosauridae'
- 'Cyclura belongs to Iguanidae'
- 'Cygnopterus belongs to Anatidae'
- 'Cylindrodontidae belongs to Protrogomorpha'
- 'Cymatosauridae belongs to Nothosauria'
- 'Cymatosaurus belongs to Cymatosauridae'
- 'Cymbalophus belongs to Tapiroidea'
- 'Cymbospondylus belongs to Shastasauridae'
- 'Cynarctoides belongs to Canidae'
- 'Cynarctus belongs to Canidae'
- 'Cynelos belongs to Amphicyonidae'
- 'Cynictis belongs to Viverridae'
- 'Cynodesmus belongs to Canidae'
- 'Cynodictis belongs to Amphicyonidae'
- 'Cynodontia was reranked as a infraorder and belongs to Therapsida'
- 'Cynodontosuchus belongs to Baurusuchidae'
- 'Cynognathidae belongs to Cynognathoidea'
- 'Cynognathoidea belongs to Eucynodontia'
- 'Cynognathus belongs to Cynognathidae'
- 'Cynorca belongs to Tayassuidae'
- 'Cynosaurus belongs to Galesauridae'
- 'Cyonasua belongs to Procyonidae'
- 'Cyonosaurus belongs to Gorgonopsidae'
- 'Cyphornis belongs to Pelagornithidae'
- 'Cypressaurus belongs to Iguanidae'
- 'Cypselavus belongs to Aegialornithidae'
- 'Cypseloides belongs to Apodidae'
- 'Cyriacotheriidae belongs to Pantodonta'
- 'Cyriacotherium belongs to Cyriacotheriidae'
- 'Cyrtodactylus belongs to Gekkonidae'
- 'Cyrtodelphis belongs to Acrodelphidae'
- 'Dacentrurus belongs to Stegosauridae'
- 'Dacquemys belongs to Pelomedusidae'
- 'Dactylosaurus belongs to Pachypleuridae'
- 'Daedicuroides belongs to Glyptodontidae'
- 'Dakosaurus belongs to Metriorhynchidae'
- 'Dakotaophis belongs to Colubridae'
- 'Dakotasuchus belongs to Goniophididae'
- 'Dakotornis belongs to Dakotornithidae'
- 'Dakotornithidae belongs to Charadriiformes'
- 'Dama belongs to Cervidae'
- 'Damalavus belongs to Bovidae'
- 'Damaliscus belongs to Bovidae'
- 'Damalops belongs to Bovidae'
- 'Daphoenictis belongs to Amphicyonidae'
- 'Daphoenodon belongs to Amphicyonidae'
- 'Daphoenus belongs to Amphicyonidae'
- 'Darchansaurus belongs to Teiidae'
- 'Dasipidae is corrected as Dasypodidae and belongs to Dasypodoidea'
- 'Dasornis belongs to Pelagornithidae'
- 'Daspletosaurus belongs to Tyrannosauridae'
- 'Dasyceps belongs to Zatracheidae'
- 'Dasypodoidea belongs to Loricata'
- 'Dasyproctidae belongs to Chinchilloidea'
- 'Dasypus belongs to Dasypodidae'
- 'Daubentoniidae belongs to Indrioidea'
- 'Daunophis belongs to Boidae'
- 'Dawsonophis belongs to Boidae'
- 'Decennatherium belongs to Giraffidae'
- 'Decoredon belongs to Hyopsodontidae'
- 'Decticadapis belongs to Ischyromyidae'
- 'Dege belongs to Spheniscidae'
- 'Deinocheiridae belongs to Theropoda'
- 'Deinocheirus belongs to Deinocheiridae'
- 'Deinonychus belongs to Dromaeosauridae'
- 'Deinosuchus belongs to Crocodylidae'
- 'Deinotheriidae belongs to Deinotherioidea'
- 'Deinotherioidea is corrected as Deinotherioidea and belongs to Proboscidea'
- 'Delorhynchus belongs to Pelycosauria'
- 'Delphinapterus belongs to Monodontidae'
- 'Delphinapterus (Hemisyntrachelus) was reranked as Hemisynthachelus and belongs to Rhabdosteidae'
- 'Delphinavus belongs to Delphinidae'
- 'Delphinidae belongs to Odontoceti'
- 'Delphinodon belongs to Kentriodontidae'
- 'Delphinognathus belongs to Tapinocephalidae'
- 'Delphinopsis belongs to Delphinidae'
- 'Delphinornis belongs to Spheniscidae'
- 'Delphinosaurus belongs to Shastasauridae'
- 'Delphinus belongs to Delphinidae'
- 'Deltacephalus belongs to Lydekkerinidae'
- 'Deltasaurus belongs to Rhytidosteidae'
- 'Dendrerpeton belongs to Dendrerpetontidae'
- 'Dendrerpetontidae belongs to Temnospondyli'
- 'Denebola belongs to Monodontidae'
- 'Deperetella belongs to Deperetellidae'
- 'Deperetellidae belongs to Tapiroidea'
- 'Deperetia belongs to Bovidae'
- 'Dermatemydidae belongs to Trionychoidea'
- 'Dermatemys belongs to Dermatemydidae'
- 'Dermochelyidae belongs to Chelonioidea'
- 'Dermochelys belongs to Dermochelyidae'
- 'Dermodactylus belongs to Pterodactylidae'
- 'Derorhynchus belongs to Didelphidae'
- 'Derwentia belongs to Rhytidosteidae'
- 'Desmana belongs to Talpidae'
- 'Desmanella belongs to Talpidae'
- 'Desmathyus belongs to Tayassuidae'
- 'Desmatochelys belongs to Cheloniidae'
- 'Desmatodon belongs to Diadectidae'
- 'Desmatophoca belongs to Desmatophocidae'
- 'Desmatophocidae belongs to Otarioidea'
- 'Desmatosuchus belongs to Stagonolepididae'
- 'Desmatotitan belongs to Brontotheridae'
- 'Desmemys belongs to Thalassemyidae'
- 'Desmognathus belongs to Plethodontidae'
- 'Desmostylia belongs to Eutheria'
- 'Desmostylidae belongs to Desmostylia'
- 'Desmostylus belongs to Desmostylidae'
- 'Deuterosauridae belongs to Titanosuchia'
- 'Deuterosaurus belongs to Deuterosauridae'
- 'Deuterotherium belongs to Proterotheriidae'
- 'Devincenzia belongs to Phorusrhacidae'
- 'Diacocherus belongs to Erinaceomorpha'
- 'Diacodexis belongs to Artiodactyla'
- 'Diacronus belongs to Anagalidae'
- 'Diadectes belongs to Diadectidae'
- 'Diadectidae belongs to Amphibia'
- 'Diademodon belongs to Diademodontidae'
- 'Diademodontidae belongs to Tritylodontoidea'
- 'Diadiaphorus belongs to Proterotheriidae'
- 'Diadophis belongs to Colubridae'
- 'Diamantomyidae belongs to Thryonomyoidea'
- 'Dianchungosaurus belongs to Heterodontosauridae'
- 'Dianosuchus belongs to Protosuchidae'
- 'Dianotitan belongs to Brontotheridae'
- 'Diaphorapteryx belongs to Rallidae'
- 'Diaphorocetus belongs to Physeteridae'
- 'Diapsida belongs to Reptilia'
- 'Diarthrognathus belongs to Tritheledontidae'
- 'Diatopornis belongs to Vulturidae'
- 'Diatryma belongs to Diatrymidae'
- 'Diatrymae is corrected as Diatrymiformes and belongs to Neognathae'
- 'Diatrymidae [misspelled as Diatrymatidae] belongs to Diatrymiformes'
- 'Dibolosodon belongs to Lacertilia'
- 'Dibothrosuchus belongs to Sphenosuchidae'
- 'Dicamptodon belongs to Dicamptodontidae'
- 'Dicamptodontidae belongs to Ambystomatoidea'
- 'Diceratherium belongs to Rhinocerotidae'
- 'Diceratosaurus belongs to Keraterpetontidae'
- 'Dicerorhinus belongs to Rhinocerotidae'
- 'Diceros belongs to Rhinocerotidae'
- 'Dichobune belongs to Dichobunidae'
- 'Dichobunidae belongs to Artiodactyla'
- 'Dichodon belongs to Xiphodontidae'
- 'Dicoryphochoerus belongs to Suidae'
- 'Dicraeosaurus belongs to Diplodocidae'
- 'Dicrocerus belongs to Cervidae'
- 'Dicrodon belongs to Teiidae'
- 'Dictyocephalus belongs to Metoposauridae'
- 'Dicynodon belongs to Dicynodontidae'
- 'Dicynodontia is corrected as Dicynodontia and belongs to Therapsida'
- 'Dicynodontidae belongs to Pristerodontia'
- 'Didelphodonta belongs to Eutheria'
- 'Didermocerus belongs to Rhinocerotidae'
- 'Didolodontidae belongs to Condylarthra'
- 'Didolodus belongs to Didolodontidae'
- 'Diellipsodon belongs to Megatheriidae'
- 'Digalodon belongs to Aulacephalodontidae'
- 'Diheterocnus belongs to Megalonychidae'
- 'Diictodon belongs to Diictodontidae'
- 'Diictodontia belongs to Dicynodontia'
- 'Diictodontidae belongs to Diictodontia'
- 'Dilambda belongs to Pantolambdodontidae'
- 'Dilophosaurus belongs to Podokesauridae'
- 'Dimacrodon belongs to Tapinocephalia'
- 'Dimetrodon belongs to Sphenacodontidae'
- 'Dimorphodon belongs to Dimorphodontidae'
- 'Dimorphodontidae belongs to Rhamphorhynchoidea'
- 'Dimylechinus belongs to Erinaceidae'
- 'Dimylidae belongs to Soricomorpha'
- 'Dimyloides belongs to Dimylidae'
- 'Dimylus belongs to Dimylidae'
- 'Dinilysia belongs to Dinilysiidae'
- 'Dinilysiidae belongs to Booidea'
- 'Dinnebitodon belongs to Tritylodontidae'
- 'Dinnetherium belongs to Triconodonta'
- 'Dinobastis belongs to Felidae'
- 'Dinocephalia belongs to Therapsida'
- 'Dinocerata belongs to Eutheria'
- 'Dinochelys belongs to Chelonia'
- 'Dinocyon belongs to Ursidae'
- 'Dinodontosaurus belongs to Kannemeyeriidae'
- 'Dinofelis belongs to Felidae'
- 'Dinogale belongs to Mustelidae'
- 'Dinogorgon belongs to Gorgonopsidae'
- 'Dinohippus belongs to Equidae'
- 'Dinohyus belongs to Entelodontidae'
- 'Dinomyidae belongs to Chinchilloidea'
- 'Dinornis belongs to Dinornithidae'
- 'Dinornithidae belongs to Dinornithiformes'
- 'Dinornithiformes belongs to Palaeognathae'
- 'Dinosorex belongs to Soricidae'
- 'Dinotherium is corrected as Deinotherium and belongs to Deinotheriidae'
- 'Dinoziphius belongs to Physeteridae'
- 'Diogenornis belongs to Opisthodactylidae'
- 'Diomedea belongs to Diomedeidae'
- 'Diomedeidae belongs to Procellariiformes'
- 'Dioplotherium belongs to Dugongidae'
- 'Diorocetus belongs to Cetotheriidae'
- 'Dipavali belongs to Hyopsodontidae'
- 'Diplasiotherium belongs to Proterotheriidae'
- 'Diplobunops belongs to Agriochoeridae'
- 'Diplocaulus belongs to Keraterpetontidae'
- 'Diploceraspis belongs to Keraterpetontidae'
- 'Diplocynodon belongs to Alligatoridae'
- 'Diplodocidae belongs to Sauropoda'
- 'Diplodocus belongs to Diplodocidae'
- 'Diploglossa belongs to Lacertilia'
- 'Diploglossus belongs to Anguidae'
- 'Diplolophodon belongs to Deperetellidae'
- 'Diplomesodon belongs to Soricidae'
- 'Diplopus belongs to Anthracotheriidae'
- 'Diplovertebron belongs to Eogyrinidae'
- 'Dipodidae belongs to Dipodoidea'
- 'Dipodoidea belongs to Myomorpha'
- 'Dipsosaurus belongs to Iguanidae'
- 'Discoglossidae belongs to Anura'
- 'Discoglossus belongs to Discoglossidae'
- 'Discosauriscidae belongs to Seymouriamorpha'
- 'Discosauriscus belongs to Discosauriscidae'
- 'Discosaurus belongs to Plesiosauria'
- 'Dissacus belongs to Mesonychidae'
- 'Dissacusium belongs to Mesonychidae'
- 'Dissorophidae belongs to Eryopoidea'
- 'Dissorophus belongs to Dissorophidae'
- 'Distylophorus belongs to Isotemnidae'
- 'Docodon belongs to Docodontidae'
- 'Docodonta belongs to Prototheria'
- 'Docodontidae belongs to Docodonta'
- 'Doedicurus belongs to Glyptodontidae'
- 'Doellotatus belongs to Dasypodidae'
- 'Doleserpeton belongs to Doleserpetontidae'
- 'Doleserpetontidae belongs to Eryopoidea'
- 'Dolichochampsa belongs to Dolichochampsidae'
- 'Dolichochampsidae belongs to Eusuchia'
- 'Dolichopareias belongs to Adelogyrinidae'
- 'Dolichorhinoides belongs to Brontotheridae'
- 'Dolichorhinus belongs to Brontotheridae'
- 'Dolichorhynchops belongs to Pliosauridae'
- 'Dolichosauridae belongs to Varanoidea'
- 'Dolichosaurus belongs to Dolichosauridae'
- 'Dolichosoma belongs to Phlegethontiidae'
- 'Dolichuranus belongs to Kannemeyeriidae'
- 'Doliosauriscus belongs to Brithopodidae'
- 'Dollochelys belongs to Toxochelyidae'
- 'Dollosaurus belongs to Mosasauridae'
- 'Dollosuchus belongs to Crocodylidae'
- 'Dolniceophis belongs to Colubridae'
- 'Domnina belongs to Soricidae'
- 'Domninoides belongs to Talpidae'
- 'Dongusia belongs to Thecodontia'
- 'Doragnathus belongs to Trimerorhachidae'
- 'Doratodon belongs to Hsisosuchidae'
- 'Dorcabune belongs to Tragulidae'
- 'Dorcadoryx belongs to Bovidae'
- 'Dorcadoxa belongs to Bovidae'
- 'Dorcatherium belongs to Tragulidae'
- 'Dormaalius belongs to Dormaaliidae'
- 'Dorraletes belongs to Hyopsodontidae'
- 'Dorsetisauridae belongs to Anguoidea'
- 'Dorsetisaurus belongs to Dorsetisauridae'
- 'Dorsetochelys belongs to Baenidae'
- 'Dorudon belongs to Basilosauridae'
- 'Dorygnathus belongs to Rhamphorhynchidae'
- 'Doswellia belongs to Thecodontia'
- 'Dracaena belongs to Teiidae'
- 'Dracaenosaurus belongs to Lacertidae'
- 'Dracopelta belongs to Nodosauridae'
- 'Dravidosaurus belongs to Stegosauridae'
- 'Dremotherium belongs to Moschidae'
- 'Drepanosauridae belongs to Diapsida'
- 'Drepanosaurus belongs to Drepanosauridae'
- 'Driveria belongs to Tapinocephalia'
- 'Dromadidae [misspelled as Dromatidae] belongs to Charadriiformes'
- 'Dromaeosauridae belongs to Theropoda'
- 'Dromaeosaurus belongs to Dromaeosauridae'
- 'Dromaiidae belongs to Casuariiformes'
- 'Dromaius belongs to Dromaiidae'
- 'Dromasauria was reranked as a infraorder and belongs to Dicynodontia'
- 'Dromatherium belongs to Chiniquodontidae'
- 'Dromiceiomimus belongs to Ornithomimidae'
- 'Dromoceratherium belongs to Rhinocerotidae'
- 'Dromornithidae belongs to Casuariiformes'
- 'Dryinoides belongs to Colubridae'
- 'Dryolestidae belongs to Eupantotheria'
- 'Dryosauridae belongs to Ornithopoda'
- 'Dryosaurus belongs to Dryosauridae'
- 'Dryptosauridae belongs to Theropoda'
- 'Dryptosauroides belongs to Dryptosauridae'
- 'Dryptosaurus belongs to Dryptosauridae'
- 'Dsungaripteridae belongs to Pterodactyloidea'
- 'Dsungaripterus belongs to Dsungaripteridae'
- 'Duchesneodus belongs to Brontotheridae'
- 'Dugongidae belongs to Sirenia'
- 'Dunnophis belongs to Boidae'
- 'Duntroonornis belongs to Spheniscidae'
- 'Durotrigia belongs to Lacertilia'
- 'Dusicyon belongs to Canidae'
- 'Dusignathus belongs to Odobaenidae'
- 'Dusisiren belongs to Dugongidae'
- 'Dvinia belongs to Dviniidae'
- 'Dviniidae belongs to Procynosuchia'
- 'Dvinosaurus belongs to Dwinasauridae'
- 'Dwinasauridae is corrected as Dvinosauridae and belongs to Brachiopoidea'
- 'Dynamopteryx belongs to Cuculidae'
- 'Dyoplax belongs to Erpetosuchidae'
- 'Dyrosauridae belongs to Mesosuchia'
- 'Dyrosaurus belongs to Dyrosauridae'
- 'Dyseohyus belongs to Tayassuidae'
- 'Dyseotylopus belongs to Camelidae'
- 'Dysnoetodon belongs to Tillodontia'
- 'Dyspterna belongs to Pantolestidae'
- 'Dystrophaeus belongs to Sauropoda'
- 'Dyticonastis belongs to Rhineuridae'
- 'Dzungariotherium belongs to Hyracodontidae'
- 'Earendil is a subjective synonym of Mimatuta'
- 'Earendil undomiel is a subjective synonym of Mimatuta minuial'
- 'Eboroziphius belongs to Ziphiidae'
- 'Ebrachosaurus belongs to Stagnolepididae'
- 'Echimyidae belongs to Octodontoidea'
- 'Echinerpeton belongs to Pelycosauria'
- 'Echinodon belongs to Fabrosauridae'
- 'Echmatemys belongs to Emydidae'
- 'Ecinepeltus belongs to Glyptodontidae'
- 'Ecolsonia belongs to Dissorophidae'
- 'Ectenosaurus belongs to Mosasauridae'
- 'Ectocion belongs to Meniscotheriidae'
- 'Ectoconus belongs to Periptychidae'
- 'Edaphocyon belongs to Procyonidae'
- 'Edaphosauridae belongs to Pelycosauria'
- 'Edaphosaurus belongs to Edaphosauridae'
- 'Edentosuchidae belongs to Mesosuchia'
- 'Edentosuchus belongs to Edentosuchidae'
- 'Edmontosaurus belongs to Hadrosauridae'
- 'Edopidae belongs to Edopoidea'
- 'Edopoidea belongs to Temnospondyli'
- 'Edops belongs to Edopidae'
- 'Edvardotrouessartia belongs to Notostylopidae'
- 'Egernia belongs to Scincidae'
- 'Eggysodon belongs to Hyracodontidae'
- 'Eichstaettisaurus belongs to Ardeosauridae'
- 'Eidolosaurus belongs to Dolichosauridae'
- 'Eifelosaurus belongs to Rhynchosauridae'
- 'Eilenosaurus belongs to Sphenodontidae'
- 'Elaphe belongs to Colubridae'
- 'Elaphrocnemus belongs to Idiornithidae'
- 'Elaphrosaurus belongs to Ornithomimidae'
- 'Elaphurus belongs to Cervidae'
- 'Elapidae belongs to Colubroidea'
- 'Elasmosauridae belongs to Plesiosauroidea'
- 'Elasmosaurus belongs to Elasmosauridae'
- 'Elasmotherium belongs to Rhinocerotidae'
- 'Elassotherium belongs to Mylodontidae'
- 'Elephantidae belongs to Euelephantoidea'
- 'Elephantosaurus belongs to Kannemeyeriidae'
- 'Elephas belongs to Elephantidae'
- 'Eleutherocercus belongs to Glyptodontidae'
- 'Eleutherodactylus belongs to Leptodactylidae'
- 'Eleutherornis belongs to Eleutherornithidae'
- 'Eleutherornithidae belongs to Grues'
- 'Elfridia belongs to Gymnarthridae'
- 'Elginia belongs to Pareiasauridae'
- 'Elliotsmithia belongs to Pelycosauria'
- 'Elmisauridae belongs to Theropoda'
- 'Elmisaurus belongs to Elmisauridae'
- 'Elomeryx belongs to Anthracotheriidae'
- 'Emarginachelys belongs to Chelydridae'
- 'Emballonuridae belongs to Emballonuroidea'
- 'Emballonuroidea belongs to Microchiroptera'
- 'Embasaurus belongs to Megalosauridae'
- 'Embolomeri belongs to Anthracosauria'
- 'Embolotherium belongs to Brontotheridae'
- 'Embrithopoda belongs to Eutheria'
- 'Embrithosaurus belongs to Pareiasauridae'
- 'Emeus belongs to Dinornithidae'
- 'Emydidae belongs to Testudinoidea'
- 'Emydoidea belongs to Emydidae'
- 'Emydopidae belongs to Diictodontia'
- 'Emydops belongs to Emydopidae'
- 'Emydorhinus belongs to Dicynodontia'
- 'Emydura belongs to Chelidae'
- 'Emyduranus belongs to Pristerodontidae'
- 'Emys belongs to Emydidae'
- 'Enaliarctinae was reranked as the family Enaliarctidae and belongs to Otarioidea'
- 'Enaliarctos belongs to Enaliarctidae'
- 'Enaliornis belongs to Enaliornithidae'
- 'Enaliornithidae belongs to Hesperornithiformes'
- 'Enaliosuchus belongs to Metriorhynchidae'
- 'Enantiornis belongs to Enantiornithidae'
- 'Enantiornithidae belongs to Enantiornithiformes'
- 'Enantiornithiformes belongs to Neornithes'
- 'Endennasauridae belongs to Diapsida'
- 'Endomychura belongs to Alcidae'
- 'Endothiodon belongs to Endothiodontidae'
- 'Endothiodontia belongs to Dicynodontia'
- 'Endothiodontidae belongs to Endothiodontia'
- 'Enhydra belongs to Mustelidae'
- 'Enhydrictis belongs to Mustelidae'
- 'Enhydriodon belongs to Mustelidae'
- 'Enhydritherium belongs to Mustelidae'
- 'Ennatosaurus belongs to Caseidae'
- 'Enneoconus belongs to Didolodontidae'
- 'Enosuchus belongs to Kotlassidae'
- 'Entelodon belongs to Entelodontidae'
- 'Entelodontidae belongs to Entelodontoidea'
- 'Entelodontoidea belongs to Suina'
- 'Entelops belongs to Entelopidae'
- 'Entelopsidae is corrected as Entelopidae and belongs to Mylodontoidea'
- 'Eoalligator belongs to Alligatoridae'
- 'Eoanilius belongs to Aniliidae'
- 'Eoarctops belongs to Gorgonopsidae'
- 'Eoauchenia belongs to Proterotheriidae'
- 'Eobucco belongs to Primobucconidae'
- 'Eocaptorhinus belongs to Captorhinidae'
- 'Eocardiidae belongs to Cavioidea'
- 'Eoceratops belongs to Ceratopsidae'
- 'Eocetus belongs to Protocetidae'
- 'Eochelone belongs to Cheloniidae'
- 'Eocrex belongs to Rallidae'
- 'Eocyclotosaurus belongs to Capitosauridae'
- 'Eodesmatodon belongs to Phenacodontidae'
- 'Eodicynodon belongs to Eodicynodontidae'
- 'Eodicynodontia belongs to Dicynodontia'
- 'Eodicynodontidae belongs to Eodicynodontia'
- 'Eodiploglossus belongs to Anguidae'
- 'Eodiscoglossus belongs to Discoglossidae'
- 'Eoentelodon belongs to Entelodontidae'
- 'Eofelis belongs to Felidae'
- 'Eogavialis belongs to Gavialidae'
- 'Eogeranoides belongs to Geranoididae'
- 'Eoglyptosaurus belongs to Anguidae'
- 'Eogruidae belongs to Grues'
- 'Eogrus belongs to Eogruidae'
- 'Eogyrinidae belongs to Embolomeri'
- 'Eogyrinus belongs to Eogyrinidae'
- 'Eohegetotherium belongs to Archaeohyracidae'
- 'Eoherpeton belongs to Eoherpetontidae'
- 'Eoherpetontidae belongs to Embolomeri'
- 'Eohyrax belongs to Archaeohyracidae'
- 'Eolacerta belongs to Lacertidae'
- 'Eolacertilia belongs to Lacertilia'
- 'Eolestes belongs to Erinaceidae'
- 'Eoletes belongs to Lophialetidae'
- 'Eomanis belongs to Manidae'
- 'Eomegatherium belongs to Megatheriidae'
- 'Eomellivora belongs to Mustelidae'
- 'Eomorphippus belongs to Notohippidae'
- 'Eomyidae belongs to Geomyoidea'
- 'Eopelobates belongs to Pelobatidae'
- 'Eoplatanista belongs to Odontoceti'
- 'Eopneumatosuchus belongs to Protosuchidae'
- 'Eoproterotherium belongs to Proterotheriidae'
- 'Eoraetia belongs to Chiniquodontoidea'
- 'Eorhinophrynus belongs to Rhinophrynidae'
- 'Eosaniwa belongs to Necrosauridae'
- 'Eosimops belongs to Dicynodontia'
- 'Eosphargis belongs to Dermochelyidae'
- 'Eosqualodon belongs to Squalodontidae'
- 'Eostrix belongs to Protostrigidae'
- 'Eostylocerus belongs to Cervidae'
- 'Eosuchia belongs to Crocodylia'
- 'Eosuchia belongs to Lepidosauromorpha'
- 'Eosuchus belongs to Crocodylidae'
- 'Eosyncerus belongs to Bovidae'
- 'Eosyodon belongs to Brithopodidae'
- 'Eotalpa belongs to Talpidae'
- 'Eotheroides belongs to Dugongidae'
- 'Eothyrididae belongs to Pelycosauria'
- 'Eothyris belongs to Eothyrididae'
- 'Eotitanops belongs to Brontotheridae'
- 'Eotitanosuchia belongs to Therapsida'
- 'Eotitanosuchidae belongs to Eotitanosuchia'
- 'Eotitanosuchus belongs to Eotitanosuchidae'
- 'Eotitanotherium belongs to Brontotheridae'
- 'Eotomistoma belongs to Champsosauridae'
- 'Eotragus belongs to Bovidae'
- 'Eotylopus belongs to Oromerycidae'
- 'Eoxenopoides belongs to Pipidae'
- 'Epanterias belongs to Sauropoda'
- 'Epecuenia belongs to Proterotheriidae'
- 'Epiemys belongs to Emydidae'
- 'Epihippus belongs to Equidae'
- 'Epimachairodus belongs to Felidae'
- 'Epimanteoceras belongs to Brontotheridae'
- 'Epipatriarchus belongs to Interatheriidae'
- 'Epipeltephilus belongs to Dasypodidae'
- 'Episoriculus belongs to Soricidae'
- 'Epitriplopus belongs to Hyracodontidae'
- 'Epoicotheriidae belongs to Palaeanodonta'
- 'Epoicotherium belongs to Epoicotheriidae'
- 'Equidae belongs to Equoidea'
- 'Equoidea belongs to Hippomorpha'
- 'Equus belongs to Equidae'
- 'Equus (Protohippus) was reranked as Protohippus and belongs to Equidae'
- 'Erdenetesaurus belongs to Teiidae'
- 'Erectopus belongs to Megalosauridae'
- 'Eremias belongs to Lacertidae'
- 'Eremotherium belongs to Megatheriidae'
- 'Erethizontidae belongs to Erethizontoidea'
- 'Erethizontoidea belongs to Caviomorpha'
- 'Eretmosaurus belongs to Pliosauridae'
- 'Ergilornis belongs to Ergilornithidae'
- 'Ergilornithidae belongs to Grues'
- 'Ericiolacerta belongs to Ericiolacertidae'
- 'Ericiolacertidae belongs to Therocephalia'
- 'Erinaceus belongs to Erinaceidae'
- 'Erlikosaurus is corrected as Erlicosaurus and belongs to Segnosauridae'
- 'Ernanodon belongs to Ernanodontidae'
- 'Ernestohaeckelia belongs to Macraucheniidae'
- 'Ernestokokenia belongs to Didolodontidae'
- 'Erpetocephalus belongs to Dendrerpetontidae'
- 'Erpetosaurus belongs to Saurerpetontidae'
- 'Erpetosuchidae belongs to Thecodontia'
- 'Erpetosuchus belongs to Erpetosuchidae'
- 'Eryopidae belongs to Eryopoidea'
- 'Eryopoidea belongs to Temnospondyli'
- 'Eryops belongs to Eryopidae'
- 'Eryosuchus belongs to Capitosauridae'
- 'Erythrobatrachus belongs to Trematosauridae'
- 'Erythrochampsa belongs to Protosuchidae'
- 'Erythrosuchidae belongs to Proterosuchia'
- 'Erythrosuchus belongs to Erythrosuchidae'
- 'Erythrotherium belongs to Morganucodontidae'
- 'Erythrozootes belongs to Tenrecidae'
- 'Eschrichtiidae belongs to Mysticeti'
- 'Essonodontherium belongs to Megatheriidae'
- 'Estemmenosuchidae belongs to Titanosuchia'
- 'Estemmenosuchus belongs to Estemmenosuchidae'
- 'Estheriophagus belongs to Procolophonidae'
- 'Esthonychidae belongs to Tillodontia'
- 'Esthonyx belongs to Esthonychidae'
- 'Ethegotherium belongs to Hegetotheriidae'
- 'Eubaena belongs to Baenidae'
- 'Eubelodon belongs to Gomphotheriidae'
- 'Euceratherium belongs to Bovidae'
- 'Euchambersia belongs to Moschorhinidae'
- 'Eucholoeops [misspelled as Eucholoeops] belongs to Megalonychidae'
- 'Eucladoceros belongs to Cervidae'
- 'Euctenoceros belongs to Cervidae'
- 'Eucynodontia belongs to Cynodontia'
- 'Eudimorphodon belongs to Eudimorphodontidae'
- 'Eudimorphodontidae belongs to Rhamphorhynchoidea'
- 'Eudinoceras belongs to Coryphodontidae'
- 'Eudocimus belongs to Plataleidae'
- 'Eudromia belongs to Tinamidae'
- 'Eudyptes belongs to Spheniscidae'
- 'Eudyptula belongs to Spheniscidae'
- 'Euelephantoidea belongs to Proboscidea'
- 'Eugyrinus belongs to Dendrerpetontidae'
- 'Euhelopodidae belongs to Sauropoda'
- 'Euhelopus belongs to Euhelopodidae'
- 'Eulamaops belongs to Camelidae'
- 'Eumantellia belongs to Dicynodontia'
- 'Eumeces belongs to Scincidae'
- 'Eumeryx belongs to Cervidae'
- 'Eumetabolodon belongs to Procolophonidae'
- 'Eumetopias belongs to Otariidae'
- 'Eunectes belongs to Boidae'
- 'Eunotosaurus belongs to Anapsida'
- 'Euoplocephalus belongs to Ankylosauridae'
- 'Eupantotheria belongs to Trituberculata'
- 'Euparkeria belongs to Euparkeriidae'
- 'Euparkeriidae belongs to Ornithosuchia'
- 'Euphractus belongs to Dasypodidae'
- 'Euposauridae belongs to Iguania'
- 'Euposaurus belongs to Euposauridae'
- 'Euproctus belongs to Salamandridae'
- 'Euprox belongs to Cervoidea'
- 'Eurheloderma belongs to Helodermatidae'
- 'Eurhinodelphis belongs to Rhabdosteidae'
- 'Eurhinosaurus belongs to Leptopterygiidae'
- 'Eurotamandua belongs to Myrmecophagidae'
- 'Euryapteryx belongs to Dinornithidae'
- 'Eurycephalochelys belongs to Trionychidae'
- 'Eurychororhinus belongs to Pristerodontidae'
- 'Eurycleidus belongs to Pliosauridae'
- 'Eurygenium belongs to Notohippidae'
- 'Eurylaimidae belongs to Passeriformes'
- 'Euryletes belongs to Tapiroidea'
- 'Eurymylidae belongs to Anagalida'
- 'Eurymylus belongs to Eurymylidae'
- 'Euryodon belongs to Amynodontidae'
- 'Euryodus belongs to Gymnarthridae'
- 'Euryonotus belongs to Rallidae'
- 'Eurypygidae belongs to Grues'
- 'Eurysaurus belongs to Pliosauridae'
- 'Eurysternum belongs to Thalassemyidae'
- 'Eurystomus belongs to Coraciidae'
- 'Eusarkia belongs to Eusarkiidae'
- 'Eusarkiidae belongs to Pleurodira'
- 'Eusauropleura belongs to Gephyrostegidae'
- 'Euskelesaurus is corrected as Euskelosaurus and belongs to Anchisauridae'
- 'Eusophus belongs to Leptodactylidae'
- 'Eustreptospondylus belongs to Megalosauridae'
- 'Eusuchia belongs to Crocodylia'
- 'Eutatus belongs to Dasypodidae'
- 'Euthecodon belongs to Crocodylidae'
- 'Eutheria belongs to Theria'
- 'Eutypomyidae belongs to Castorimorpha'
- 'Eutypotherium belongs to Mesotheriidae'
- 'Exaeretodon belongs to Traversodontidae'
- 'Exallerix belongs to Erinaceomorpha'
- 'Exoedaenodus belongs to Dimylidae'
- 'Exostinus belongs to Xenosauridae'
- 'Fabrosauridae belongs to Ornithopoda'
- 'Fabrosaurus belongs to Fabrosauridae'
- 'Falco belongs to Falconidae'
- 'Falconidae belongs to Falconiformes'
- 'Falconiformes belongs to Neognathae'
- 'Fasolasuchus belongs to Rauisuchidae'
- 'Fayella belongs to Dissorophidae'
- 'Felidae belongs to Aeluroidea'
- 'Felis belongs to Felidae'
- 'Felsinotherium belongs to Dugongidae'
- 'Fenhosuchus belongs to Thecodontia'
- 'Fennecus belongs to Canidae'
- 'Ferecetotherium belongs to Cetacea'
- 'Ferinestrix belongs to Mustelidae'
- 'Florentiamyidae belongs to Geomyoidea'
- 'Floridaceras belongs to Rhinocerotidae'
- 'Floridatragulus belongs to Camelidae'
- 'Floridemys belongs to Testudinidae'
- 'Forstercooperia belongs to Hyracodontidae'
- 'Fratercula belongs to Alcidae'
- 'Fregatae belongs to Pelecaniformes'
- 'Fregatidae belongs to Fregatae'
- 'Fresnosaurus belongs to Elasmosauridae'
- 'Fringillidae belongs to Passeriformes'
- 'Fugusuchus belongs to Erythrosuchidae'
- 'Fulengia belongs to Fulengidae'
- 'Fulengidae belongs to Eolacertilia'
- 'Fulgurotherium belongs to Hypsilophodontidae'
- 'Fulica belongs to Rallidae'
- 'Fulicaletornis belongs to Rallidae'
- 'Fulmarus belongs to Procellariidae'
- 'Gaillardia belongs to Talpidae'
- 'Gaindatherium belongs to Rhinocerotidae'
- 'Galbulidae belongs to Coracii'
- 'Galechirus belongs to Galeopsidae'
- 'Galemys belongs to Talpidae'
- 'Galeopithecidae belongs to Dermoptera'
- 'Galeops belongs to Galeopsidae'
- 'Galeopsidae belongs to Dromasauria'
- 'Galepus belongs to Galeopsidae'
- 'Galerix belongs to Erinaceidae'
- 'Galesauridae belongs to Procynosuchia'
- 'Galesaurus belongs to Galesauridae'
- 'Galesphyridae belongs to Eusuchia'
- 'Galesphyrus belongs to Galesphyridae'
- 'Galesuchus belongs to Gorgonopsidae'
- 'Galictis belongs to Mustelidae'
- 'Galliformes belongs to Neognathae'
- 'Gallimimus belongs to Ornithomimidae'
- 'Gallinula belongs to Rallidae'
- 'Gallinuloides belongs to Cracidae'
- 'Gallodactylus belongs to Pterodactylidae'
- 'Gallogoral belongs to Bovidae'
- 'Gandakasia belongs to Protocetidae'
- 'Gangicobus belongs to Bovidae'
- 'Ganolophus belongs to Phenacolophidae'
- 'Garjainia belongs to Erythrosuchidae'
- 'Garudimimus belongs to Ornithomimidae'
- 'Gastornis belongs to Diatrymidae'
- 'Gastrophryne belongs to Microhylidae'
- 'Gaudrya belongs to Cochleosauridae'
- 'Gavia belongs to Gaviidae'
- 'Gavialidae belongs to Eusuchia'
- 'Gavialinum belongs to Teleosauridae'
- 'Gavialis belongs to Gavialidae'
- 'Gavialosuchus belongs to Gavialidae'
- 'Gaviidae belongs to Gaviiformes'
- 'Gaviiformes belongs to Neognathae'
- 'Gaviota belongs to Laridae'
- 'Gaylordia belongs to Didelphidae'
- 'Gazella belongs to Bovidae'
- 'Gecatogomphius [misspelled as Hecatogomphius] belongs to Captorhinidae'
- 'Geckolepis belongs to Gekkonidae'
- 'Geikia belongs to Dicynodontidae'
- 'Geiseltaliellus belongs to Iguanidae'
- 'Gekko belongs to Gekkonidae'
- 'Gekkonidae belongs to Nyctisaura'
- 'Gelasmodon belongs to Anthracotheriidae'
- 'Gelocidae belongs to Traguloidea'
- 'Gelocus belongs to Gelocidae'
- 'Genetta belongs to Viverridae'
- 'Geniohyus belongs to Pliohyracidae'
- 'Gentilicamelus belongs to Camelidae'
- 'Genyodectes belongs to Tyrannosauridae'
- 'Geochelone belongs to Testudinidae'
- 'Geoclemys belongs to Emydidae'
- 'Geoemyda belongs to Emydidae'
- 'Geomyidae belongs to Geomyoidea'
- 'Geomyoidea belongs to Myomorpha'
- 'Geosaurus belongs to Metriorhynchidae'
- 'Geotrypus belongs to Talpidae'
- 'Gephyrosauridae belongs to Sphenodonta'
- 'Gephyrosaurus belongs to Gephyrosauridae'
- 'Gephyrostegida belongs to Anthracosauria'
- 'Gephyrostegidae belongs to Gephyrostegida'
- 'Gephyrostegus belongs to Gephyrostegidae'
- 'Gerandogekko belongs to Gekkonidae'
- 'Geranodornis belongs to Geranoididae'
- 'Geranoides belongs to Geranoididae'
- 'Geranoididae belongs to Grues'
- 'Geranopsis belongs to Gruidae'
- 'Geranopterus belongs to Coraciidae'
- 'Geranosaurus belongs to Heterodontosauridae'
- 'Geringophis belongs to Boidae'
- 'Germanodactylus belongs to Pterodactylidae'
- 'Gerrhonotus belongs to Anguidae'
- 'Gerrhosaurus belongs to Cordylidae'
- 'Gerrothorax belongs to Plagiosauridae'
- 'Gesneropithex belongs to Amphilemuridae'
- 'Geyeriella belongs to Dicamptodontidae'
- 'Gigantamynodon belongs to Amynodontidae'
- 'Gigantohyrax belongs to Procaviidae'
- 'Gigantophis belongs to Boidae'
- 'Gigantornis belongs to Pelagornithidae'
- 'Gillisonchus belongs to Periptychidae'
- 'Gilmoreosaurus belongs to Hadrosauridae'
- 'Giraffa belongs to Giraffidae'
- 'Giraffidae belongs to Cervoidea'
- 'Giraffokeryx belongs to Giraffidae'
- 'Glareola belongs to Glareolidae'
- 'Glareolidae belongs to Charadriiformes'
- 'Glarichelys belongs to Cheloniidae'
- 'Glaucosaurus belongs to Pelycosauria'
- 'Gliridae belongs to Gliroidea'
- 'Gliroidea belongs to Sciurognathi'
- 'Globicephala belongs to Delphinidae'
- 'Globidens belongs to Mosasauridae'
- 'Glossochelys belongs to Toxochelyidae'
- 'Glossotheridium belongs to Mylodontidae'
- 'Glossotheriopsis belongs to Mylodontidae'
- 'Glossotherium belongs to Mylodontidae'
- 'Glyptatelus belongs to Glyptodontidae'
- 'Glyptodon belongs to Glyptodontidae'
- 'Glyptodontidae belongs to Glyptodontoidea'
- 'Glyptodontoidea belongs to Loricata'
- 'Glyptops belongs to Glyptopsidae'
- 'Glyptopsidae belongs to Baenoidea'
- 'Glyptosaurus belongs to Anguidae'
- 'Glyptotherium belongs to Glyptodontidae'
- 'Gnathosaurus belongs to Ctenochasmatidae'
- 'Gnathotitan belongs to Brontotheridae'
- 'Gnorhimosuchus belongs to Seymouriidae'
- 'Gnotornis belongs to Ardeidae'
- 'Gobiates belongs to Discoglossidae'
- 'Gobiatheriidae belongs to Dinocerata'
- 'Gobiaatar is a misspelling of Gobibaatar'
- 'Gobiconodon belongs to Amphilestinae'
- 'Gobicyon belongs to Canidae'
- 'Gobiderma belongs to Diploglossa'
- 'Gobihippus belongs to Equidae'
- 'Gobiocerus belongs to Bovidae'
- 'Gobiohyus belongs to Helohyidae'
- 'Gobiomeryx belongs to Tragulidae'
- 'Gobiosuchidae belongs to Mesosuchia'
- 'Gobiosuchus belongs to Gobiosuchidae'
- 'Gobipterygidae belongs to Gobipterygiformes'
- 'Gobipterygiformes belongs to Neornithes'
- 'Gobipteryx belongs to Gobipterygidae'
- 'Goinophis belongs to Serpentes'
- 'Goliathia belongs to Balaenicipitidae'
- 'Gomphodontosuchus belongs to Traversodontidae'
- 'Gomphos belongs to Mimotonidae'
- 'Gomphotheriidae belongs to Euelephantoidea'
- 'Gomphotherium belongs to Gomphotheriidae'
- 'Gondwanosaurus belongs to Benthosuchidae'
- 'Gongbusaurus belongs to Fabrosauridae'
- 'Gongylomorphus belongs to Scincidae'
- 'Goniodelphis belongs to Delphinidae'
- 'Gonioglyptus belongs to Trematosauridae'
- 'Goniopholididae [misspelled as Goniophididae] belongs to Mesosuchia'
- 'Goniopholis belongs to Goniophididae'
- 'Goniorhynchidae belongs to Tuditanomorpha'
- 'Gonotelma belongs to Anthracotheriidae'
- 'Gopherus belongs to Testudinidae'
- 'Gordonia belongs to Dicynodontidae'
- 'Gorgodon belongs to Eotitanosuchia'
- 'Gorgonops belongs to Gorgonopsidae'
- 'Gorgonopsia belongs to Therapsida'
- 'Gorgonopsidae belongs to Gorgonopsia'
- 'Goupilictis belongs to Amphicyonidae'
- 'Goyocephale belongs to Homalocephalidae'
- 'Gracilisuchidae belongs to Thecodontia'
- 'Gracilisuchus belongs to Gracilisuchidae'
- 'Graculavidae belongs to Charadriiformes'
- 'Graculavus belongs to Graculavidae'
- 'Grallavis belongs to Ciconiiformes'
- 'Gravitholus belongs to Pachycephalosauridae'
- 'Grayemys belongs to Emydidae'
- 'Greererpeton belongs to Colosteidae'
- 'Grendelius belongs to Leptopterygiidae'
- 'Griphodon belongs to Pyrotheriidae'
- 'Grippia belongs to Omphalosauridae'
- 'Grues belongs to Gruiformes'
- 'Gruidae belongs to Grues'
- 'Gruiformes belongs to Neognathae'
- 'Grus belongs to Gruidae'
- 'Gryphoca belongs to Phocidae'
- 'Gryposuchus belongs to Gavialidae'
- 'Gryzaja belongs to Otididae'
- 'Gualosuchus belongs to Proterochampsidae'
- 'Guggenheimia belongs to Didelphidae'
- 'Guilestes belongs to Mesonychidae'
- 'Guilielmofloweria belongs to Proterotheriidae'
- 'Guilielmoscottia belongs to Interatheriidae'
- 'Guixia belongs to Hyracodontidae'
- 'Gulo belongs to Mustelidae'
- 'Gymnarthridae belongs to Tuditanomorpha'
- 'Gymnophiona belongs to Lepospondyli'
- 'Gymnurechinus belongs to Erinaceidae'
- 'Gypsornis belongs to Idiornithidae'
- 'Gyrinophilus belongs to Plethodontidae'
- 'Habromeryx belongs to Cervidae'
- 'Habrosaurus belongs to Sirenidae'
- 'Hadrictis belongs to Mustelidae'
- 'Hadrodelphis belongs to Delphinidae'
- 'Hadrokkosaurus belongs to Brachyopidae'
- 'Hadrosauridae belongs to Ornithopoda'
- 'Hadrosaurus belongs to Hadrosauridae'
- 'Haematopodidae belongs to Charadriiformes'
- 'Haematopus belongs to Haematopodidae'
- 'Haematosaurus belongs to Teleosauridae'
- 'Hainosaurus belongs to Mosasauridae'
- 'Halcyones belongs to Coraciiformes'
- 'Halcyornis belongs to Halcyornithidae'
- 'Halcyornithidae belongs to Coraciiformes'
- 'Haldanodon belongs to Docodontidae'
- 'Halisaurus belongs to Mosasauridae'
- 'Halitherium belongs to Dugongidae'
- 'Halitherium (Prototherium) was reranked as Prototherium and belongs to Dugongidae'
- 'Hallautherium belongs to Triconodonta'
- 'Hallopidae belongs to Hallopoda'
- 'Hallopoda belongs to Crocodylia'
- 'Hallopus belongs to Hallopidae'
- 'Halticosaurus belongs to Podokesauridae'
- 'Haltictops belongs to Pseudictopidae'
- 'Hangaiemys belongs to Chelonia'
- 'Hapalodectidae belongs to Mesonychia'
- 'Hapaloides belongs to Megatheriidae'
- 'Hapalops belongs to Megatheriidae'
- 'Haplaletes belongs to Hyopsodontidae'
- 'Haplobunodon belongs to Haplobunodontidae'
- 'Haplobunodontidae belongs to Hippopotamoidea'
- 'Haplocanthosaurus belongs to Cetiosauridae'
- 'Haploconus belongs to Periptychidae'
- 'Haplocyon belongs to Amphicyonidae'
- 'Haplocyonoides belongs to Amphicyonidae'
- 'Haplocyonopsis belongs to Amphicyonidae'
- 'Haplodontosaurus belongs to Lacertilia'
- 'Haplohippus belongs to Equidae'
- 'Haplolambda belongs to Barylambdidae'
- 'Haplomastodon belongs to Gomphotheriidae'
- 'Haplomeryx belongs to Xiphodontidae'
- 'Haplomylus belongs to Hyopsodontidae'
- 'Hapsidopareion belongs to Hapsidopareiontidae'
- 'Hapsidopareiontidae belongs to Tuditanomorpha'
- 'Haptodus belongs to Sphenacodontidae'
- 'Haptosphenus belongs to Teiidae'
- 'Haqueina belongs to Helohyidae'
- 'Hardella belongs to Emydidae'
- 'Harpagolestes belongs to Mesonychidae'
- 'Harpagophagus belongs to Amphicyonidae'
- 'Harpaleocyon belongs to Ursidae'
- 'Harpyodidae belongs to Pantodonta'
- 'Harpyodus belongs to Harpyodidae'
- 'Harrisonsaurus belongs to Iguanidae'
- 'Haughtoniana belongs to Dicynodontia'
- 'Hayemys belongs to Baenidae'
- 'Hayoceros belongs to Antilocapridae'
- 'Hecubides [misspelled as Hebucides] belongs to Amphicyonidae'
- 'Hegetotheriidae belongs to Hegetotheroidea'
- 'Hegetotherium belongs to Hegetotheriidae'
- 'Hegetotheroidea belongs to Typotheroidea'
- 'Heishanemys belongs to Dermatemydidae'
- 'Heishansaurus [misspelled as Heishanosaurus] belongs to Ankylosauridae'
- 'Helagras belongs to Boidae'
- 'Helarctos belongs to Ursidae'
- 'Heleophilus belongs to Millerettidae'
- 'Heleosaurus belongs to Thecodontia'
- 'Heleosuchus belongs to Younginidae'
- 'Helicoportax belongs to Bovidae'
- 'Helicotragus belongs to Bovidae'
- 'Heliornithidae belongs to Grues'
- 'Helladotherium belongs to Giraffidae'
- 'Helochelys belongs to Pleurosternidae'
- 'Heloderma belongs to Helodermatidae'
- 'Helodermatidae belongs to Varanoidea'
- 'Helodermoides belongs to Anguidae'
- 'Helogale belongs to Viverridae'
- 'Helohyidae belongs to Artiodactyla'
- 'Helohyus belongs to Helohyidae'
- 'Helveticosauridae belongs to Placodontia'
- 'Helveticosaurus belongs to Helveticosauridae'
- 'Helvetiodon belongs to Triconodonta'
- 'Hemiauchenia belongs to Camelidae'
- 'Hemibos belongs to Bovidae'
- 'Hemichelys belongs to Carettochelyidae'
- 'Hemichoerus belongs to Suidae'
- 'Hemicyon belongs to Ursidae'
- 'Hemidactylus belongs to Gekkonidae'
- 'Hemihegetotherium belongs to Hegetotheriidae'
- 'Hemimeryx belongs to Anthracotheriidae'
- 'Hemiprotosuchus belongs to Protosuchidae'
- 'Hemistrepsiceros belongs to Bovidae'
- 'Hemithlaeus belongs to Periptychidae'
- 'Hemitragus belongs to Bovidae'
- 'Hemixotodon belongs to Toxodontidae'
- 'Hendryomeryx belongs to Leptomerycidae'
- 'Henodontidae belongs to Placodontia'
- 'Henodus belongs to Henodontidae'
- 'Henophidia belongs to Serpentes'
- 'Henricofilholia belongs to Leontiniidae'
- 'Henricosbornia belongs to Henricosborniidae'
- 'Henricosbornidae is corrected as Henricosborniidae and belongs to Notioprogonia'
- 'Heomys belongs to Eurymylidae'
- 'Heothema belongs to Anthracotheriidae'
- 'Heptacodon belongs to Anthracotheriidae'
- 'Heptasteornis belongs to Theropoda'
- 'Heptasuchus belongs to Rauisuchidae'
- 'Herbstosaurus belongs to Pterodactylidae'
- 'Herpestes belongs to Viverridae'
- 'Herpestides belongs to Viverridae'
- 'Herpetocetus belongs to Cetotheriidae'
- 'Herrerasauridae belongs to Staurikosauria'
- 'Herrerasaurus belongs to Herrerasauridae'
- 'Hesperhys belongs to Tayassuidae'
- 'Hesperidoceras belongs to Bovidae'
- 'Hesperocamelus belongs to Camelidae'
- 'Hesperocetus belongs to Platanistidae'
- 'Hesperocyon belongs to Canidae'
- 'Hesperogavialis belongs to Gavialidae'
- 'Hesperornidae is corrected as Hesperornithidae and belongs to Hesperornithiformes'
- 'Hesperornis belongs to Hesperornithidae'
- 'Hesperornithiformes belongs to Odontognathae'
- 'Hesperoscalops belongs to Talpidae'
- 'Hesperosiren belongs to Dugongidae'
- 'Hesperosorex belongs to Soricidae'
- 'Hesperosuchus belongs to Sphenosuchidae'
- 'Heterocemas belongs to Cervoidea'
- 'Heterocetus belongs to Cetotheriidae'
- 'Heterodelphis belongs to Acrodelphidae'
- 'Heterodon belongs to Colubridae'
- 'Heterodontosauridae belongs to Ornithopoda'
- 'Heterodontosaurus belongs to Heterodontosauridae'
- 'Heteroglyphis belongs to Proterotheriidae'
- 'Heteromeryx belongs to Protoceratidae'
- 'Heteromyidae belongs to Geomyoidea'
- 'Heteroprox belongs to Cervoidea'
- 'Heterorhea belongs to Rheidae'
- 'Heuneus belongs to Dicynodontia'
- 'Hexacodus belongs to Artiodactyla'
- 'Hexameryx belongs to Antilocapridae'
- 'Hexaprotodon belongs to Hippopotamidae'
- 'Hexobelomeryx belongs to Antilocapridae'
- 'Himalayasaurus belongs to Shastasauridae'
- 'Hipparion belongs to Equidae'
- 'Hipparion (Nannippus) was reranked as Nannippus and belongs to Equidae'
- 'Hippidion belongs to Equidae'
- 'Hippocamelus belongs to Cervidae'
- 'Hippohyus belongs to Suidae'
- 'Hippomorpha belongs to Perissodactyla'
- 'Hippopotamidae belongs to Hippopotamoidea'
- 'Hippopotamoidea belongs to Suina'
- 'Hippopotamus belongs to Hippopotamidae'
- 'Hipposauridae belongs to Gorgonopsia'
- 'Hipposaurus belongs to Hipposauridae'
- 'Hipposideridae belongs to Rhinolophoidea'
- 'Hippotragus belongs to Bovidae'
- 'Hispanochampsa belongs to Alligatoridae'
- 'Hispanotherium belongs to Rhinocerotidae'
- 'Hoazinoides belongs to Opisthocomidae'
- 'Hofmeyria belongs to Hofmeyriidae'
- 'Hofmeyriidae belongs to Therocephalia'
- 'Hokouchelys belongs to Emydidae'
- 'Holbrookia belongs to Iguanidae'
- 'Holmesina belongs to Dasypodidae'
- 'Holopsisuchus belongs to Crocodylidae'
- 'Homacodon belongs to Artiodactyla'
- 'Homalocephale belongs to Homalocephalidae'
- 'Homalocephaleridae is corrected as Homalocephalidae and belongs to Pachycephalosauria'
- 'Homalodotheriidae belongs to Toxodontia'
- 'Homalodotherium belongs to Homalodotheriidae'
- 'Homalostylops belongs to Notostylopidae'
- 'Hominidae belongs to Hominoidea'
- 'Hominoidea belongs to Catarrhini'
- 'Homoeosaurus [misspelled as Homeosaurus] belongs to Sphenodontidae'
- 'Homogalax belongs to Isectolophidae'
- 'Homotherium belongs to Felidae'
- 'Honanodon belongs to Mesonychidae'
- 'Honanotherium belongs to Giraffidae'
- 'Hondadelphys belongs to Didelphidae'
- 'Hoplitosaurus belongs to Nodosauridae'
- 'Hoplocetus belongs to Physeteridae'
- 'Hoplochelys belongs to Dermatemydidae'
- 'Hoplophorus belongs to Glyptodontidae'
- 'Hoplosuchus belongs to Atoposaurides'
- 'Hovasaurus belongs to Tangasauridae'
- 'Howesia belongs to Rhynchosauridae'
- 'Hsisosuchidae belongs to Mesosuchia'
- 'Hsisosuchus belongs to Hsisosuchidae'
- 'Hsiuannania belongs to Anagalidae'
- 'Huaiyangale belongs to Anagalidae'
- 'Huananodon belongs to Amynodontidae'
- 'Huananothema belongs to Anthracotheriidae'
- 'Huangotherium belongs to Rhinocerotidae'
- 'Huanhepterus belongs to Ctenochasmatidae'
- 'Huayangosaurus belongs to Stegosauridae'
- 'Huberophis belongs to Boidae'
- 'Hukoutherium belongs to Mesonychidae'
- 'Hulgana belongs to Ischyromyidae'
- 'Hulsanpes belongs to Dromaeosauridae'
- 'Hupehsuchidae belongs to Ichthyopterygia'
- 'Hyaena belongs to Hyaenidae'
- 'Hyaenictis belongs to Hyaenidae'
- 'Hyaenidae belongs to Aeluroidea'
- 'Hyaenodontidae belongs to Creodonta'
- 'Hydaspicobus belongs to Bovidae'
- 'Hydaspitherium belongs to Giraffidae'
- 'Hydralmosaurus belongs to Elasmosauridae'
- 'Hydrictis belongs to Mustelidae'
- 'Hydrochoeridae belongs to Cavioidea'
- 'Hydromedusa belongs to Chelidae'
- 'Hydropotes belongs to Cervidae'
- 'Hydrotherosaurus belongs to Elasmosauridae'
- 'Hyla belongs to Hylidae'
- 'Hylaeobatrachus belongs to Urodeles'
- 'Hylaeochampsa belongs to Hylaeochampsidae'
- 'Hylaeochampsidae belongs to Eusuchia'
- 'Hylaeosaurus belongs to Nodosauridae'
- 'Hylerpeton belongs to Gymnarthridae'
- 'Hylidae belongs to Anura'
- 'Hylobatidae belongs to Hominoidea'
- 'Hylochoerus belongs to Suidae'
- 'Hylomeryx belongs to Artiodactyla'
- 'Hylonomus belongs to Protorothyrididae'
- 'Hyloplesion belongs to Hyloplesiontidae'
- 'Hyloplesiontidae belongs to Microbrachomorpha'
- 'Hynobiidae belongs to Cryptobranchoidea'
- 'Hyoboops belongs to Anthracotheriidae'
- 'Hyopsodontidae belongs to Condylarthra'
- 'Hyopsodus belongs to Hyopsodontidae'
- 'Hyosus belongs to Suidae'
- 'Hyotherium belongs to Suidae'
- 'Hyotitan belongs to Brontotheridae'
- 'Hypercoryphodon belongs to Coryphodontidae'
- 'Hyperdichobune belongs to Dichobunidae'
- 'Hyperdidelphys belongs to Didelphidae'
- 'Hyperleptus belongs to Megalonychidae'
- 'Hyperodapedon belongs to Rhynchosauridae'
- 'Hyperoxotodon belongs to Toxodontidae'
- 'Hypertragulidae belongs to Traguloidea'
- 'Hypertragulus belongs to Hypertragulidae'
- 'Hypisodus belongs to Hypertragulidae'
- 'Hyporhina belongs to Hyporhinidae'
- 'Hyporhinidae belongs to Annulata'
- 'Hyposaurus belongs to Dyrosauridae'
- 'Hypsamynodon belongs to Amynodontidae'
- 'Hypselorhachis belongs to Ctenosauriscidae'
- 'Hypselosaurus belongs to Titanosauridae'
- 'Hypsilolambda belongs to Bemalambdidae'
- 'Hypsilophodon belongs to Hypsilophodontidae'
- 'Hypsilophodontidae belongs to Ornithopoda'
- 'Hypsimylus belongs to Mimotonidae'
- 'Hypsodontus belongs to Bovidae'
- 'Hypsognathus belongs to Procolophonidae'
- 'Hyracodon belongs to Hyracodontidae'
- 'Hyracodontidae belongs to Rhinocerotoidea'
- 'Hyracoidea belongs to Eutheria'
- 'Hyracolestes belongs to Insectivora'
- 'Hyracotherium belongs to Equidae'
- 'Hystricidae belongs to Hystricomorpha'
- 'Hystricognathi belongs to Rodentia'
- 'Hystricomorpha belongs to Hystricognathi'
- 'Ianthasaurus belongs to Edaphosauridae'
- 'Ibarus belongs to Leptochoerinae'
- 'Iberomeryx belongs to Moschidae'
- 'Iberosuchus belongs to Baurusuchidae'
- 'Iberovaranus belongs to Varanidae'
- 'Ibidopsis belongs to Rallidae'
- 'Icaronycteroidea belongs to Microchiroptera'
- 'Icarosaurus belongs to Kuehneosauridae'
- 'Ichthyolestes belongs to Mesonychidae'
- 'Ichthyophiidae belongs to Gymnophiona'
- 'Ichthyopterygia belongs to Archosauria'
- 'Ichthyornidae is corrected as Ichthyornithidae and belongs to Pedeticosauridae'
- 'Ichthyornis belongs to Ichthyornithidae'
- 'Ichthyosauridae belongs to Ichthyopterygia'
- 'Ichthyosaurus belongs to Ichthyosauridae'
- 'Ichthyostega belongs to Ichthyostegidae'
- 'Ichthyostegalia belongs to Labyrinthodontia'
- 'Ichthyostegidae belongs to Ichthyostegalia'
- 'Ichthyostegopsis belongs to Ichthyostegidae'
- 'Ictidorhinidae belongs to Gorgonopsia'
- 'Ictidorhinus belongs to Ictidorhinidae'
- 'Ictidostoma belongs to Hofmeyriidae'
- 'Ictidosuchidae belongs to Therocephalia'
- 'Ictidosuchoides belongs to Ictidosuchidae'
- 'Ictidosuchoides intermedius belongs to Ictidosuchoides' according to Broom 1940
- 'Ictidosuchoides longiceps belongs to Ictidosuchoides' according to Broom 1920
- 'Ictidosuchoides rubidgei belongs to Ictidosuchoides' according to Broom 1936
- 'Ictidosuchops belongs to Ictidosuchidae'
- 'Ictidosuchus belongs to Ictidosuchidae'
- 'Ictitherium belongs to Hyaenidae'
- 'Ictonyx belongs to Mustelidae'
- 'Ictopidium belongs to Leptictidae'
- 'Idiocetus belongs to Balaenopteridae'
- 'Idiophyseter belongs to Physeteridae'
- 'Idiornis belongs to Idiornithidae'
- 'Idiornithidae belongs to Cariamae'
- 'Idiorophus belongs to Physeteridae'
- 'Ifasaurus belongs to Trematosauridae'
- 'Ignatiolambda belongs to Barylambdidae'
- 'Iguana belongs to Iguanidae'
- 'Iguanavus belongs to Lacertilia'
- 'Iguania belongs to Lacertilia'
- 'Iguanidae belongs to Iguania'
- 'Iguanodon belongs to Iguanodontidae'
- 'Iguanodontidae belongs to Ornithopoda'
- 'Ikanogavialis belongs to Gavialidae'
- 'Ilchunaia belongs to Sebecidae'
- 'Ilchunaia parva belongs to Ilchunaia' according to Rusconi 1946
- 'Ilerdaesaurus belongs to Lacertilia'
- 'Ilianodon belongs to Hyracodontidae'
- 'Iliosuchus belongs to Theropoda'
- 'Imagotaria belongs to Odobaenidae'
- 'Imequincisoria belongs to Hyracodontidae'
- 'Imerocetus belongs to Cetotheriidae'
- 'Imerodelphis belongs to Delphinidae'
- 'Impregnochelys belongs to Testudinidae'
- 'Incacetus belongs to Ziphiidae'
- 'Indalecia belongs to Adianthidae'
- 'Indarctos belongs to Ursidae'
- 'Indicatoridae belongs to Piciformes'
- 'Indobatrachus belongs to Leptodactylidae'
- 'Indobrachyopidae belongs to Rhytidosteoidea'
- 'Indobrachyops belongs to Indobrachyopidae'
- 'Indohyus belongs to Helohyidae'
- 'Indolophus belongs to Tapiroidea'
- 'Indomeryx belongs to Hypertragulidae'
- 'Indoredunca belongs to Bovidae'
- 'Indosaurus belongs to Allosauridae'
- 'Indosiren belongs to Dugongidae'
- 'Indosuchus belongs to Tyrannosauridae'
- 'Indratherium belongs to Giraffidae'
- 'Indricotherium belongs to Hyracodontidae'
- 'Indriidae belongs to Indrioidea'
- 'Indrioidea belongs to Lemuriformes'
- 'Inflectosaurus belongs to Trematosauridae'
- 'Ingenia belongs to Oviraptoridae'
- 'Ingentisorex belongs to Soricidae'
- 'Inguza [misspelled as Insuza] belongs to Spheniscidae'
- 'Iniopsis belongs to Delphinidae'
- 'Injanatherium belongs to Giraffidae'
- 'Inosaurus belongs to Megalosaurinidae'
- 'Inostrancevia belongs to Gorgonopsidae'
- 'Intasuchus belongs to Eryopidae'
- 'Interatheridae is corrected as Interatheriidae and belongs to Typotheroidea'
- 'Interatherium belongs to Interatheriidae'
- 'Interhippus belongs to Notohippidae'
- 'Iranotherium belongs to Rhinocerotidae'
- 'Iratusaurus belongs to Dissorophidae'
- 'Ischignathus belongs to Traversodontidae'
- 'Ischigualastia belongs to Kannemeyeriidae'
- 'Ischisaurus belongs to Herrerasauridae'
- 'Ischyrictis belongs to Mustelidae'
- 'Ischyrocyon belongs to Amphicyonidae'
- 'Ischyrorhynchus belongs to Platanistidae'
- 'Isectolophidae belongs to Ceratomorpha'
- 'Isectolophus belongs to Isectolophidae'
- 'Ishatherium belongs to Anthracobunidae'
- 'Isocetus belongs to Cetotheriidae'
- 'Isodectes belongs to Saurerpetontidae'
- 'Isodontosaurus belongs to Lacertilia'
- 'Isotemnus belongs to Isotemnidae'
- 'Itaboraitherium belongs to Oldfieldthomasiidae'
- 'Itasuchus belongs to Goniophididae'
- 'Itemirus belongs to Theropoda'
- 'Ivantosaurus belongs to Eotitanosuchidae'
- 'Ixacanthus [misspelled as Ixacanthis] belongs to Delphinidae'
- 'Jacana belongs to Jacanidae'
- 'Jacanidae [misspelled as Jaccanidae] belongs to Charadriiformes'
- 'Jacheleria belongs to Kannemeyeriidae'
- 'Jaxartosaurus belongs to Hadrosauridae'
- 'Jepsibaena belongs to Rhineuridae'
- 'Jiangxia belongs to Mesonychidae'
- 'Jonkeria belongs to Titanosuchidae'
- 'Jozaria belongs to Anthracobunidae'
- 'Jubbulpuria belongs to Theropoda'
- 'Juncitarsus belongs to Phoenicopteridae'
- 'Juxia belongs to Hyracodontidae'
- 'Kabulicornis belongs to Bovidae'
- 'Kachuga belongs to Emydidae'
- 'Kadaliosaurus belongs to Araeoscelidae'
- 'Kadimakara belongs to Prolacertidae'
- 'Kahneria belongs to Captorhinidae'
- 'Kakuru belongs to Coeluridae'
- 'Kalisuchus belongs to Proterosuchidae'
- 'Kallokibotiidae belongs to Chelonia'
- 'Kallokibotion [misspelled as Kallokibotium] belongs to Kallokibotiidae'
- 'Kamacops belongs to Dissorophidae'
- 'Kampholophos [misspelled as Kampholophus] belongs to Kentriodontidae'
- 'Kamtschatarctos belongs to Enaliarctidae'
- 'Kangnasaurus belongs to Dryosauridae'
- 'Kannemeyeria belongs to Kannemeyeriidae'
- 'Kannemeyeriidae belongs to Pristerodontia'
- 'Kansuchelys belongs to Testudinidae'
- 'Kapes belongs to Procolophonidae'
- 'Karauridae belongs to Karauroidea'
- 'Karauroidea belongs to Urodeles'
- 'Karaurus belongs to Karauridae'
- 'Karpinskiosaurus belongs to Kotlassidae'
- 'Kayentatherium belongs to Tritylodontidae'
- 'Keichousaurus belongs to Pachypleuridae'
- 'Kekenodon belongs to Archaeoceti'
- 'Kelba belongs to Pantolestidae'
- 'Kelmayisaurus belongs to Megalosaurinidae'
- 'Kennalestidae belongs to Eutheria'
- 'Kentisuchus belongs to Crocodylidae'
- 'Kentriodon belongs to Kentriodontidae'
- 'Kentriodontidae belongs to Odontoceti'
- 'Kentrosaurus belongs to Stegosauridae'
- 'Kenyamyidae belongs to Thryonomyoidea'
- 'Kenyasaurus belongs to Tangasauridae'
- 'Keraterpeton belongs to Keraterpetontidae'
- 'Keraterpetontidae belongs to Nectridea'
- 'Keratobrachyops belongs to Chigutisauridae'
- 'Keratocephalus belongs to Tapinocephalidae'
- 'Kestrosaurus belongs to Capitosauridae'
- 'Khashanagale belongs to Anagalidae'
- 'Khirtharia belongs to Helohyidae'
- 'Khurendukhosaurus belongs to Champsosauridae'
- 'Kibenikhoria belongs to Oldfieldthomasiidae'
- 'Kichechia belongs to Viverridae'
- 'Kimmerosaurus belongs to Cryptoclididae'
- 'Kingoria belongs to Kingoridae'
- 'Kingoridae belongs to Dicynodontia'
- 'Kinixys belongs to Testudinidae'
- 'Kinosternoidea was reranked as the superfamily Kinosternidae and belongs to Trionychoidea'
- 'Kinosternon belongs to Kinosternidae'
- 'Kirgizemynae belongs to Chelonia'
- 'Klamelia belongs to Morganucodontidae'
- 'Knoxosaurus belongs to Eotitanosuchia'
- 'Koalliella belongs to Salamandridae'
- 'Kobikeryx belongs to Bovidae'
- 'Kobus belongs to Bovidae'
- 'Kogiopsis belongs to Physeteridae'
- 'Koiloskiosaurus belongs to Procolophonidae'
- 'Kolpochoerus belongs to Suidae'
- 'Kombuisia [misspelled as Kombusia] belongs to Kingoridae'
- 'Korora belongs to Spheniscidae'
- 'Korynochoerus belongs to Suidae'
- 'Kotlassia belongs to Kotlassidae'
- 'Kotlassidae belongs to Seymouriamorpha'
- 'Koupia belongs to Dicynodontia'
- 'Kourerpetidae [misspelled as Kourerpetontidae] belongs to Brachyopoidea'
- 'Kourerpeton belongs to Kourerpetontidae'
- 'Kraglievichia belongs to Dasypodidae'
- 'Kronosaurus belongs to Pliosauridae'
- 'Kuanchuanius belongs to Esthonychidae'
- 'Kubanochoerus belongs to Suidae'
- 'Kubanotragus belongs to Bovidae'
- 'Kuehneosauridae belongs to Eolacertilia'
- 'Kuehneosaurus belongs to Kuehneosauridae'
- 'Kuehneosuchus belongs to Kuehneosauridae'
- 'Kuehneotheriidae belongs to Symmetrodonta'
- 'Kunminia belongs to Chiniquodontoidea'
- 'Kunmunella belongs to Helohyidae'
- 'Kvabebihyrax belongs to Pliohyracidae'
- 'Kwangsisaurus belongs to Nothosauria'
- 'Labidosaurikos belongs to Captorhinidae'
- 'Labidosaurus belongs to Captorhinidae'
- 'Labocania belongs to Theropoda'
- 'Labyrinthodontia was reranked as a subclass and belongs to Amphibia'
- 'Laccocephalus belongs to Rhinesuchidae'
- 'Lacerta belongs to Lacertidae'
- 'Lacertidae belongs to Leptoglossa'
- 'Lacertilia was reranked as a suborder and belongs to Squamata'
- 'Lacertulus belongs to Eolacertilia'
- 'Laemanctus belongs to Iguanidae'
- 'Laevisuchus belongs to Theropoda'
- 'Lafonius belongs to Trimerorhachidae'
- 'Lagerpeton belongs to Lagosuchidae'
- 'Lagomeryx belongs to Palaeomerycidae'
- 'Lagomorpha belongs to Eutheria'
- 'Lagosuchidae belongs to Ornithosuchia'
- 'Lagosuchus belongs to Lagosuchidae'
- 'Laidleria belongs to Rhytidosteidae'
- 'Lama belongs to Camelidae'
- 'Lambeosaurus belongs to Hadrosauridae'
- 'Lamegoia belongs to Didolodontidae'
- 'Lammidhania belongs to Anthracobunidae'
- 'Lamprolithax belongs to Odontoceti'
- 'Lampropeltis belongs to Colubridae'
- 'Lanasaurus belongs to Heterodontosauridae'
- 'Lanthaniscus belongs to Lanthanosuchidae'
- 'Lanthanosuchidae belongs to Anthracosauria'
- 'Lanthanosuchus belongs to Lanthanosuchidae'
- 'Lanthanotidae belongs to Varanoidea'
- 'Lantianius belongs to Dichobunidae'
- 'Laornis belongs to Graculavidae'
- 'Laphictis belongs to Mustelidae'
- 'Laplatasaurus belongs to Titanosauridae'
- 'Lapparentopheidae belongs to Simoliopheoidea'
- 'Lapparentophis belongs to Lapparentopheidae'
- 'Laredochoerus belongs to Leptochoerinae'
- 'Laridae belongs to Charadriiformes'
- 'Lariosaurus belongs to Nothosauridae'
- 'Lartetotherium belongs to Rhinocerotidae'
- 'Larus belongs to Laridae'
- 'Laterallus belongs to Rallidae'
- 'Latiscopus belongs to Trematosauridae'
- 'Latonia belongs to Discoglossidae'
- 'Leecyaena belongs to Hyaenidae'
- 'Leidyosuchus belongs to Crocodylidae'
- 'Leiocephalikon belongs to Gymnarthridae'
- 'Leiocephalus belongs to Iguanidae'
- 'Leiodon is corrected as Liodon and belongs to Mosasauridae'
- 'Leiosaurus belongs to Iguanidae'
- 'Lemuridae belongs to Lemuroidea'
- 'Lemuriformes belongs to Prosimii'
- 'Lemuroidea was reranked as a superfamily and belongs to Lemuriformes'
- 'Lemurosaurus belongs to Ictidorhinidae'
- 'Leontinia belongs to Leontiniidae'
- 'Leontiniidae belongs to Toxodontia'
- 'Leontocephalus belongs to Gorgonopsidae'
- 'Lepidophyma belongs to Xantusiidae'
- 'Lepidosauria was reranked as a superorder and belongs to Lepidosauromorpha'
- 'Lepidosauromorpha belongs to Diapsida'
- 'Leporidae belongs to Lagomorpha'
- 'Lepospondyli was reranked as a subclass and belongs to Amphibia'
- 'Leptacodon belongs to Nyctitheriidae'
- 'Leptarctus belongs to Mustelidae'
- 'Lepterpeton belongs to Urocordylidae'
- 'Leptictidium belongs to Pseudorhyncocyonidae'
- 'Leptobos belongs to Bovidae'
- 'Leptoceratops belongs to Protoceratopsidae'
- 'Leptochamops belongs to Teiidae'
- 'Leptochoeridae belongs to Entelodontoidea'
- 'Leptochoerus belongs to Leptochoerinae'
- 'Leptocleidus belongs to Pliosauridae'
- 'Leptocyon belongs to Canidae'
- 'Leptodactylidae belongs to Anura'
- 'Leptodactylus belongs to Leptodactylidae'
- 'Leptodelphis belongs to Kentriodontidae'
- 'Leptoglossa belongs to Lacertilia'
- 'Leptolambda belongs to Barylambdidae'
- 'Leptomerycidae belongs to Traguloidea'
- 'Leptomeryx belongs to Leptomerycidae'
- 'Leptophoca belongs to Phocidae'
- 'Leptophractus belongs to Eogyrinidae'
- 'Leptopleuron belongs to Procolophonidae'
- 'Leptopterygiidae belongs to Ichthyopterygia'
- 'Leptopterygius belongs to Leptopterygiidae'
- 'Leptoreodon belongs to Protoceratidae'
- 'Leptoropha belongs to Rhipaeosauridae'
- 'Leptorycteropus belongs to Orycteropodidae'
- 'Leptosomidae [misspelled as Leptosomatidae] belongs to Coracii'
- 'Leptotheridium belongs to Cebochoeridae'
- 'Leptotragulus belongs to Protoceratidae'
- 'Leptotragus belongs to Bovidae'
- 'Lesothosuchus belongs to Protosuchidae'
- 'Lessnessina belongs to Hyopsodontidae'
- 'Lestodelphys belongs to Didelphidae'
- 'Lestodon belongs to Mylodontidae'
- 'Lestophis belongs to Rhineuridae'
- 'Lethiscidae belongs to Aistopoda'
- 'Lethiscus belongs to Lethiscidae'
- 'Letoverpeton belongs to Discosauriscidae'
- 'Leurospondylus belongs to Elasmosauridae'
- 'Lewisuchus belongs to Gracilisuchidae'
- 'Lexovisaurus belongs to Stegosauridae'
- 'Libralces belongs to Cervidae'
- 'Libycosuchidae belongs to Mesosuchia'
- 'Libycosuchus belongs to Libycosuchidae'
- 'Libytherium belongs to Giraffidae'
- 'Licaphrium belongs to Proterotheriidae'
- 'Licaphrops belongs to Proterotheriidae'
- 'Limnatornis belongs to Coliidae'
- 'Limnerpeton belongs to Micromelerpetontidae'
- 'Limnoecus belongs to Soricidae'
- 'Limnofregata belongs to Fregatidae'
- 'Limnoiketes belongs to Lydekkerinidae'
- 'Limnonyx belongs to Mustelidae'
- 'Limnoscelidae belongs to Anthracosauria'
- 'Limnoscelis belongs to Limnoscelidae'
- 'Limnosceloides belongs to Limnoscelidae'
- 'Limnoscelops belongs to Limnoscelidae'
- 'Limnostygis belongs to Limnoscelidae'
- 'Limognitherium belongs to Chalicotheriidae'
- 'Lindholmemys belongs to Dermatemydidae'
- 'Linnania belongs to Anagalidae'
- 'Liolithax belongs to Kentriodontidae'
- 'Lisboasaurus belongs to Lacertilia'
- 'Lissemys belongs to Trionychidae'
- 'Lisserpeton belongs to Scapherpetonidae'
- 'Listriodon belongs to Suidae'
- 'Litakis belongs to Eolacertilia'
- 'Lithophis belongs to Boidae'
- 'Lithornidae belongs to Palaeognathae'
- 'Lithornis belongs to Lithornidae'
- 'Litomylus belongs to Hyopsodontidae'
- 'Litopterna belongs to Eutheria'
- 'Llistrofus belongs to Hapsidopareiontidae'
- 'Lofochaius belongs to Esthonychidae'
- 'Lohoodon belongs to Mesonychidae'
- 'Lomaphorus belongs to Glyptodontidae'
- 'Lonchodelphis belongs to Odontoceti'
- 'Longirostromeryx belongs to Moschidae'
- 'Longiscitula belongs to Dissorophidae'
- 'Lophialetes belongs to Lophialetidae'
- 'Lophialetidae belongs to Tapiroidea'
- 'Lophiaspis belongs to Chalicotheriidae'
- 'Lophiobunodon belongs to Dichobunidae'
- 'Lophiodon belongs to Lophiodontidae'
- 'Lophiodon (Coryphodon) was reranked as Coryphodon and belongs to Coryphodontidae'
- 'Lophiodontidae belongs to Tapiroidea'
- 'Lophiohys belongs to Helohyidae'
- 'Lophiomeryx belongs to Leptomerycidae'
- 'Lophiopus belongs to Equidae'
- 'Lophiotherium belongs to Equidae'
- 'Lophocetus belongs to Kentriodontidae'
- 'Lophochelys belongs to Toxochelyidae'
- 'Lophochoerus belongs to Suidae'
- 'Lophogododon [misspelled as Lophogonodon] belongs to Mesonychidae'
- 'Lopholistriodon belongs to Suidae'
- 'Lophorhothon belongs to Hadrosauridae'
- 'Loricata belongs to Xenarthra'
- 'Loricosaurus belongs to Titanosauridae'
- 'Loridae is corrected as Lorisidae and belongs to Lorisoidea'
- 'Lorisoidea belongs to Lemuriformes'
- 'Lotosaurus belongs to Ctenosauriscidae'
- 'Louisina belongs to Hyopsodontidae'
- 'Loxodonta belongs to Elephantidae'
- 'Loxolithax belongs to Phocaenidae'
- 'Loxomma belongs to Loxommatidae'
- 'Loxommatidae belongs to Loxommatoidea'
- 'Loxommatoidea belongs to Labyrinthodontia'
- 'Luangwa belongs to Traversodontidae'
- 'Ludiortyx belongs to Rallidae'
- 'Lufengia belongs to Tritylodontidae'
- 'Lufengosaurus belongs to Anchisauridae'
- 'Lukousaurus belongs to Podokesauridae'
- 'Lunania belongs to Chalicotherioidea'
- 'Lupeosaurus is corrected as Luperosaurus and belongs to Pelycosauria'
- 'Lupersuchus belongs to Rauisuchidae'
- 'Lushiamynodon belongs to Amynodontidae'
- 'Lusitanosaurus belongs to Scelidosauridae'
- 'Lutra belongs to Mustelidae'
- 'Lutravus belongs to Mustelidae'
- 'Lutreolina belongs to Didelphidae'
- 'Luzocephalus belongs to Lydekkerinidae'
- 'Lycaenodon belongs to Ictidorhinidae'
- 'Lycaenops belongs to Gorgonopsidae'
- 'Lycaon belongs to Canidae'
- 'Lycideops belongs to Lycideopsidae'
- 'Lycideopsidae belongs to Therocephalia'
- 'Lycorhinus belongs to Heterodontosauridae'
- 'Lycyaena belongs to Hyaenidae'
- 'Lydekkerina belongs to Lydekkerinidae'
- 'Lydekkerinidae belongs to Rhinesuchoidea'
- 'Lygodactylus belongs to Gekkonidae'
- 'Lyncodon belongs to Mustelidae'
- 'Lynx belongs to Felidae'
- 'Lyrocephaliscus belongs to Trematosauridae'
- 'Lyrocerus belongs to Bovidae'
- 'Lyrosaurus belongs to Trematosauridae'
- 'Lysorophia belongs to Lepospondyli'
- 'Lysorophidae belongs to Lysorophia'
- 'Lysorophus belongs to Lysorophidae'
- 'Lystrosauridae belongs to Pristerodontia'
- 'Lystrosaurus belongs to Lystrosauridae' according to Broom 1903
- 'Mabokopithecus belongs to Suidae'
- 'Mabuya belongs to Scincidae'
- 'Macedonitherium belongs to Giraffidae'
- 'Machaeromeryx belongs to Moschidae'
- 'Machaerosaurus belongs to Anguidae'
- 'Machairodus belongs to Felidae'
- 'Machimosaurus belongs to Teleosauridae'
- 'Machlydotherium belongs to Dasypodidae'
- 'Macrauchenia belongs to Macraucheniidae'
- 'Macraucheniidae belongs to Litopterna'
- 'Macraucheniopsis belongs to Macraucheniidae'
- 'Macrerpeton belongs to Cochleosauridae'
- 'Macrobaena belongs to Chelonia'
- 'Macrocephalochelys belongs to Chelydridae'
- 'Macrocephalosaurus belongs to Teiidae'
- 'Macrochelys [misspelled as Macroclemys] belongs to Chelydridae'
- 'Macrochemus is corrected as Macrocnemus and belongs to Prolacertidae'
- 'Macrochirifer belongs to Delphinidae'
- 'Macrodelphinus belongs to Rhabdosteidae'
- 'Macroeuphractus belongs to Dasypodidae'
- 'Macrogalidia belongs to Viverridae'
- 'Macroleter belongs to Nycteroleteridae'
- 'Macromerion belongs to Sphenacodontidae'
- 'Macropelobates belongs to Pelobatidae'
- 'Macrophon belongs to Procolophonidae'
- 'Macroplata belongs to Pliosauridae'
- 'Macrorhineura belongs to Rhineuridae'
- 'Macroscelidea belongs to Eutheria'
- 'Macroscelididae belongs to Macroscelidea'
- 'Macrotherium belongs to Chalicotheriidae'
- 'Macrurosaurus belongs to Titanosauridae'
- 'Madoqua belongs to Bovidae'
- 'Madtsoia belongs to Boidae'
- 'Mahavisaurus belongs to Indobrachyopidae'
- 'Maiasaura belongs to Hadrosauridae'
- 'Maiorana belongs to Periptychidae'
- 'Majungasaurus belongs to Megalosaurinidae'
- 'Majungatholus belongs to Pachycephalosauridae'
- 'Makapania belongs to Bovidae'
- 'Malaquiferus belongs to Oromerycidae'
- 'Malerisaurus belongs to Prolacertidae'
- 'Malpolon belongs to Colubridae'
- 'Mamenchisaurus belongs to Diplodocidae'
- 'Mammacyon belongs to Amphicyonidae'
- 'Mammut belongs to Mammutidae'
- 'Mammuthus belongs to Elephantidae'
- 'Mammutidae belongs to Mammutoidea'
- 'Mammutoidea belongs to Proboscidea'
- 'Manatidae belongs to Sirenia'
- 'Manatus belongs to Dugongidae'
- 'Mancalla belongs to Alcidae'
- 'Manchurochelys belongs to Sinemydidae'
- 'Mandasuchus belongs to Rauisuchidae'
- 'Mandschurosaurus belongs to Hadrosauridae'
- 'Manidae belongs to Pholidota'
- 'Manis belongs to Manidae' according to Gray 1821
- 'Manteodon belongs to Coryphodontidae'
- 'Marcetia belongs to Mustelidae'
- 'Marmosa belongs to Didelphidae'
- 'Marmosopsis belongs to Didelphidae'
- 'Marplesornis belongs to Spheniscidae'
- 'Marshosaurus belongs to Theropoda'
- 'Martes belongs to Mustelidae'
- 'Martinogale belongs to Mustelidae'
- 'Masilabune belongs to Haplobunodontidae'
- 'Masillamys belongs to Ischyromyidae'
- 'Masritherium belongs to Anthracotheriidae'
- 'Massetognathus belongs to Traversodontidae'
- 'Massospondylus belongs to Anchisauridae'
- 'Mastersonia belongs to Tapinocephalia'
- 'Mastodon (Zygolophodon) was reranked as Zygolophodon and belongs to Mammutidae'
- 'Mastodonsauridae belongs to Capitosauroidea'
- 'Mastodonsaurus belongs to Mastodonsauridae'
- 'Matutinia belongs to Eurymylidae'
- 'Mauicetus belongs to Cetotheriidae'
- 'Mauisaurus belongs to Elasmosauridae'
- 'Mauremys belongs to Emydidae'
- 'Maxschlosseria belongs to Oldfieldthomasiidae'
- 'Mckennatherium belongs to Erinaceomorpha'
- 'Medistylus belongs to Interatheriidae'
- 'Megacerops belongs to Brontotheridae'
- 'Megachiroptera belongs to Chiroptera'
- 'Megachoerus belongs to Entelodontidae'
- 'Megacnemus belongs to Prolacertidae'
- 'Megadermatidae belongs to Rhinolophoidea'
- 'Megadyptes belongs to Spheniscidae'
- 'Megaegotheles belongs to Aegothelidae'
- 'Megahippus belongs to Equidae'
- 'Megalancosaurus belongs to Thecodontia'
- 'Megalania belongs to Varanidae'
- 'Megalapidae belongs to Lemuroidea'
- 'Megalapteryx belongs to Dinornithidae'
- 'Megalesthonyx belongs to Esthonychidae'
- 'Megalictis belongs to Mustelidae'
- 'Megalneusaurus belongs to Pliosauridae'
- 'Megalocephalus belongs to Loxommatidae'
- 'Megaloceros belongs to Cervidae'
- 'Megalodelphis belongs to Delphinidae'
- 'Megalohyrax belongs to Pliohyracidae'
- 'Megalonychidae belongs to Megalonychoidea'
- 'Megalonychoidea belongs to Pilosa'
- 'Megalonychops belongs to Megalonychidae'
- 'Megalonychotherium belongs to Megalonychidae'
- 'Megalonyx belongs to Megalonychidae'
- 'Megalosauri is corrected as Megalosauridae and belongs to Theropoda'
- 'Megalosaurus belongs to Megalosauridae'
- 'Megalotragus belongs to Bovidae'
- 'Megalotriton belongs to Salamandridae'
- 'Megalovis belongs to Bovidae'
- 'Megamolgophis belongs to Lysorophia'
- 'Megantereon belongs to Felidae'
- 'Megapaloelodus belongs to Phoenicopteridae'
- 'Megapodidae belongs to Galliformes'
- 'Megaptera belongs to Balaenopteridae'
- 'Megaptera (Eschrichtius) [misspelled as Eschrictius] belongs to Balaenidae'
- 'Megapteropsis belongs to Balaenopteridae'
- 'Megatheriadae is corrected as Megatheriidae and belongs to Megalonychoidea'
- 'Megathericulus belongs to Megatheriidae'
- 'Megatherium belongs to Megatheriidae'
- 'Megazostrodon belongs to Morganucodontidae'
- 'Meiolania belongs to Meiolaniidae'
- 'Meiolaniidae belongs to Baenoidea'
- 'Meiostylodon belongs to Esthonychidae'
- 'Melaniella belongs to Palaeanodonta'
- 'Melanopelta belongs to Plagiosauridae'
- 'Melanorosauridae belongs to Prosauropoda'
- 'Melanorosaurus belongs to Melanorosauridae'
- 'Melanosaurus belongs to Anguidae'
- 'Melanosuchus belongs to Alligatoridae'
- 'Meleagris belongs to Phasianidae'
- 'Meles belongs to Mustelidae'
- 'Melidellavus belongs to Mustelidae'
- 'Mellalictis belongs to Mustelidae'
- 'Mellivora belongs to Mustelidae'
- 'Mellivorodon belongs to Felidae'
- 'Melodon belongs to Mustelidae'
- 'Melosauridae belongs to Eryopoidea'
- 'Melosaurus belongs to Melosauridae'
- 'Melursus belongs to Ursidae'
- 'Menelikia belongs to Bovidae'
- 'Meniscodon belongs to Dichobunidae'
- 'Meniscognathus belongs to Teiidae'
- 'Meniscotheriidae belongs to Condylarthra'
- 'Meniscotherium belongs to Meniscotheriidae'
- 'Menoceras belongs to Rhinocerotidae'
- 'Mephitis belongs to Mustelidae'
- 'Mergus belongs to Anatidae'
- 'Meridiosaurus belongs to Pholidosauridae'
- 'Meroehyrax belongs to Pliohyracidae'
- 'Meropidae belongs to Halcyones'
- 'Merriamia belongs to Shastasauridae'
- 'Mertensiella belongs to Salamandridae'
- 'Merychippus belongs to Equidae'
- 'Merycobunodon belongs to Oromerycidae'
- 'Merycodus belongs to Antilocapridae'
- 'Merycoidodontoidea belongs to Tylopoda'
- 'Merycopotamus belongs to Anthracotheriidae'
- 'Mesaceratherium belongs to Rhinocerotidae'
- 'Mesatirhinus belongs to Brontotheridae'
- 'Meschotherium belongs to Rhinocerotidae'
- 'Mesembriacerus belongs to Bovidae'
- 'Mesembriportax belongs to Bovidae'
- 'Mesenosauridae belongs to Diapsida'
- 'Mesenosaurus belongs to Mesenosauridae'
- 'Mesitornithidae belongs to Grues'
- 'Mesocetus belongs to Cetotheriidae'
- 'Mesochelys belongs to Glyptopsidae'
- 'Mesochoerus belongs to Suidae'
- 'Mesocyon belongs to Canidae'
- 'Mesodapedon belongs to Rhynchosauridae'
- 'Mesohippus belongs to Equidae'
- 'Mesomephitis belongs to Mustelidae'
- 'Mesomeryx belongs to Artiodactyla'
- 'Mesonychia belongs to Eutheria'
- 'Mesonychidae belongs to Mesonychia'
- 'Mesonyx belongs to Mesonychidae'
- 'Mesophis belongs to Serpentes'
- 'Mesoplodon belongs to Ziphiidae'
- 'Mesoplodon (Cetorhynchus) was reranked as Cetorhynchus and belongs to Ziphiidae'
- 'Mesosauria belongs to Anapsida'
- 'Mesosauridae belongs to Mesosauria'
- 'Mesosaurus belongs to Mesosauridae'
- 'Mesoscalops belongs to Proscalopidae'
- 'Mesosuchia belongs to Crocodylia'
- 'Mesosuchus belongs to Rhynchosauridae'
- 'Mesoteras belongs to Balaenopteridae'
- 'Mesotheriidae belongs to Typotheroidea'
- 'Mesotherium belongs to Mesotheriidae'
- 'Messelobunodon belongs to Dichobunidae'
- 'Metacervulus belongs to Cervidae'
- 'Metacheiromyidae belongs to Palaeanodonta'
- 'Metacheiromys belongs to Metacheiromyidae'
- 'Metacordylodon belongs to Dimylidae'
- 'Metacoryphodon belongs to Coryphodontidae'
- 'Metahapalodectes belongs to Mesonychidae'
- 'Metailurus belongs to Felidae'
- 'Metamynodon belongs to Amynodontidae'
- 'Metanothosaurus belongs to Nothosauria'
- 'Metarctos belongs to Ursidae'
- 'Metarhinus belongs to Brontotheridae'
- 'Metasqualodon belongs to Squalodontidae'
- 'Metatelmatherium belongs to Brontotheridae'
- 'Metatheria was reranked as a subclass and belongs to Theria'
- 'Metatitan belongs to Brontotheridae'
- 'Metaxytherium belongs to Dugongidae'
- 'Meteutatus belongs to Dasypodidae'
- 'Metopocetus belongs to Cetotheriidae'
- 'Metoposauridae belongs to Metoposauroidea'
- 'Metoposauroidea belongs to Temnospondyli'
- 'Metoposaurus belongs to Metoposauridae'
- 'Metopotoxus belongs to Glyptodontidae'
- 'Metriacanthosaurus belongs to Megalosauridae'
- 'Metridiochoerus belongs to Suidae'
- 'Metriorhynchidae belongs to Mesosuchia'
- 'Metriorhynchus belongs to Metriorhynchidae'
- 'Metriotherium belongs to Dichobunidae'
- 'Meyasaurus belongs to Sphenodontidae'
- 'Miacoidea belongs to Carnivora'
- 'Michenia belongs to Camelidae'
- 'Micoureus belongs to Didelphidae'
- 'Micranteosaurus belongs to Anteosauridae'
- 'Micraroter belongs to Ostodolepididae'
- 'Microbrachidae belongs to Microbrachomorpha'
- 'Microbrachis belongs to Microbrachidae'
- 'Microbrachomorpha belongs to Microsauria'
- 'Microbunodon belongs to Anthracotheriidae'
- 'Microceratops belongs to Protoceratopsidae'
- 'Microcetus belongs to Squalodontidae'
- 'Microchampsa belongs to Thecodontia'
- 'Microchiroptera belongs to Chiroptera'
- 'Microcnemus belongs to Procolophonidae'
- 'Microcoelus belongs to Sauropoda'
- 'Microconodon belongs to Chiniquodontidae'
- 'Microhylidae belongs to Anura'
- 'Microhyus belongs to Hyopsodontidae'
- 'Micromelerpeton belongs to Micromelerpetontidae'
- 'Micromelerpetontidae belongs to Eryopoidea'
- 'Micromeryx belongs to Moschidae'
- 'Micropachycephalosaurus belongs to Homalocephalidae'
- 'Microphocaena belongs to Kentriodontidae'
- 'Micropholis belongs to Dissorophidae'
- 'Microphon belongs to Procolophonidae'
- 'Microposaurus belongs to Trematosauridae'
- 'Micropternodontidae belongs to Soricomorpha'
- 'Micropternodus belongs to Micropternodontidae'
- 'Microsauria belongs to Lepospondyli'
- 'Microsorex belongs to Soricidae'
- 'Microstonyx belongs to Suidae'
- 'Microsus belongs to Artiodactyla'
- 'Microtheledon belongs to Procolophonidae'
- 'Microtitan belongs to Brontotheridae'
- 'Microtragus belongs to Bovidae'
- 'Microvenator belongs to Coeluridae'
- 'Microzeuglodon belongs to Archaeoceti'
- 'Miguelsoria belongs to Protolipternidae'
- 'Milleretta belongs to Millerettidae'
- 'Millerettidae belongs to Millerosauroidea'
- 'Millerettoides belongs to Millerettidae'
- 'Millerettops belongs to Millerettidae'
- 'Milleropsis belongs to Millerettidae'
- 'Millerosauroidea belongs to Captorhinida'
- 'Millerosaurus belongs to Millerettidae'
- 'Milnea belongs to Plataleidae'
- 'Milosaurus belongs to Pelycosauria'
- 'Mimatuta belongs to Periptychidae'
- 'Mimeosaurus belongs to Agamidae'
- 'Mimobecklesisaurus belongs to Scincidae'
- 'Mimolagus belongs to Mimotonidae'
- 'Mimotona belongs to Mimotonidae'
- 'Mimotonidae belongs to Anagalida'
- 'Minchenella belongs to Phenacolophidae'
- 'Minerva is a nomen dubium'
- 'Minusculodelphis belongs to Didelphidae'
- 'Mioachoerus belongs to Dichobunidae'
- 'Miocepphus belongs to Alcidae'
- 'Miocitta belongs to Corvidae'
- 'Mioclaenidae belongs to Condylarthra'
- 'Miocochilius belongs to Interatheriidae'
- 'Miodelphis belongs to Odontoceti'
- 'Mioechinus belongs to Erinaceidae'
- 'Miofulica belongs to Rallidae'
- 'Mioglareola belongs to Glareolidae'
- 'Miohippus belongs to Equidae'
- 'Miohyaena belongs to Hyaenidae'
- 'Miolabis belongs to Camelidae'
- 'Miolabis (Paratylopus) was reranked as Paratylopus and belongs to Camelidae'
- 'Miomachairodus belongs to Felidae'
- 'Miomastodon belongs to Mammutidae'
- 'Miomephitis belongs to Mustelidae'
- 'Miomeryx belongs to Leptomerycidae'
- 'Miomustela belongs to Mustelidae'
- 'Mionatrix belongs to Colubridae'
- 'Mionictis belongs to Mustelidae'
- 'Miopelobates belongs to Pelobatidae'
- 'Miopelodytes belongs to Pelodytidae'
- 'Miophasianus belongs to Phasianidae'
- 'Mioproteus belongs to Proteidae'
- 'Miorallus belongs to Rallidae'
- 'Miosula belongs to Sulidae'
- 'Miotapirus belongs to Tapiridae'
- 'Miotragocerus belongs to Bovidae'
- 'Miotylopus belongs to Camelidae'
- 'Mirandatherium belongs to Didelphidae'
- 'Mirocetus belongs to Cetacea'
- 'Mixocetus belongs to Cetotheriidae'
- 'Mixosauridae belongs to Ichthyopterygia'
- 'Mixosaurus belongs to Mixosauridae'
- 'Mixtotherium belongs to Cebochoeridae'
- 'Mnemeiosaurus belongs to Brithopodidae'
- 'Moeritheriidae belongs to Moeritherioidea'
- 'Moeritherioidea belongs to Proboscidea'
- 'Moeritherium belongs to Moeritheriidae'
- 'Moiachoerus belongs to Cebochoeridae'
- 'Molgophis belongs to Lysorophidae'
- 'Molossidae belongs to Vespertilionoidea'
- 'Molybdopygus belongs to Estemmenosuchidae'
- 'Momotidae belongs to Halcyones'
- 'Mongolemys belongs to Dermatemydidae'
- 'Mongolestes belongs to Mesonychidae'
- 'Mongolonyx belongs to Mesonychidae'
- 'Mongolosaurus belongs to Sauropoda'
- 'Monjurosuchus belongs to Sphenodontidae'
- 'Monoclonius belongs to Ceratopsidae'
- 'Monodelphis belongs to Didelphidae'
- 'Monodelphopsis belongs to Didelphidae'
- 'Monodon belongs to Monodontidae'
- 'Monodontidae belongs to Odontoceti'
- 'Monotherium belongs to Phocidae'
- 'Monotremata belongs to Prototheria'
- 'Montanatylopus belongs to Oromerycidae'
- 'Montanoceratops belongs to Protoceratopsidae'
- 'Moradisaurus belongs to Captorhinidae'
- 'Morenocetus belongs to Balaenidae'
- 'Morenosaurus belongs to Elasmosauridae'
- 'Morganucodon belongs to Morganucodontidae'
- 'Morganucodontidae belongs to Triconodonta'
- 'Mormosaurus belongs to Tapinocephalidae'
- 'Moropomorpha belongs to Perissodactyla'
- 'Moropus belongs to Chalicotheriidae'
- 'Morphippus belongs to Notohippidae'
- 'Morus belongs to Sulidae'
- 'Mosasauridae belongs to Varanoidea'
- 'Mosasaurus belongs to Mosasauridae'
- 'Moschidae belongs to Cervoidea'
- 'Moschops belongs to Tapinocephalidae'
- 'Moschorhinidae belongs to Therocephalia'
- 'Moschorhinus belongs to Moschorhinidae'
- 'Moschosaurus belongs to Tapinocephalidae'
- 'Moschowhaitsia belongs to Whaitsiidae'
- 'Moschus belongs to Moschidae'
- 'Mouillacitherium belongs to Dichobunidae'
- 'Mourasuchus belongs to Crocodylidae'
- 'Muchocephalus belongs to Rhinesuchidae'
- 'Mungos belongs to Viverridae'
- 'Muntiacus belongs to Cervidae'
- 'Muraenosaurus belongs to Elasmosauridae'
- 'Muraenosaurus (Cryptoclidus) was reranked as Cryptoclidus and belongs to Cryptoclididae'
- 'Muridae belongs to Muroidea'
- 'Muroidea belongs to Myomorpha'
- 'Musophaga belongs to Musophagidae'
- 'Musophagidae belongs to Cuculiformes'
- 'Mussaurus belongs to Anchisauridae'
- 'Mustela belongs to Mustelidae'
- 'Mustelictis belongs to Mustelidae'
- 'Mustelidae belongs to Arctoidea'
- 'Muttaburrasaurus belongs to Iguanodontidae'
- 'Mycterosaurus belongs to Varanopseidae'
- 'Mycterosuchus belongs to Teleosauridae'
- 'Mygalea belongs to Talpidae'
- 'Mygalinia belongs to Talpidae'
- 'Mygatalpa belongs to Talpidae'
- 'Mylagaulidae belongs to Aplodontoidea'
- 'Mylodon belongs to Mylodontidae'
- 'Mylodontidae belongs to Mylodontoidea'
- 'Mylodontoidea belongs to Pilosa'
- 'Mylohyus belongs to Tayassuidae'
- 'Myocephalus belongs to Procolophonidae'
- 'Myognathus belongs to Procolophonidae'
- 'Myomorpha belongs to Sciurognathi'
- 'Myophiomyidae belongs to Thryonomyoidea'
- 'Myorycteropus belongs to Orycteropodidae'
- 'Myosauroides belongs to Emydopidae'
- 'Myosaurus belongs to Emydopidae'
- 'Myosorex belongs to Soricidae'
- 'Myotragus belongs to Bovidae'
- 'Myrmecophaga belongs to Myrmecophagidae'
- 'Myrmecophagidae belongs to Vermilingua'
- 'Mysticeti belongs to Cetacea'
- 'Mystipterus belongs to Talpidae'
- 'Mystriosaurus belongs to Teleosauridae'
- 'Mystriosuchus belongs to Phytosauridae'
- 'Mytonomeryx belongs to Artiodactyla'
- 'Myxomygale belongs to Talpidae'
- 'Myzopodidae belongs to Vespertilionoidea'
- 'Naemorhedus is corrected as Naemorhaedus and belongs to Bovidae'
- 'Naja belongs to Elapidae'
- 'Naanchangasaurus is a misspelling of Nanchangasaurus'
- 'Nanchangasaurus belongs to Hupehsuchidae'
- 'Nanhsiungchelys belongs to Chelonia'
- 'Nanictidops belongs to Ictidosuchidae'
- 'Nanictocephalus belongs to Scaloposauridae'
- 'Nanlingilambda belongs to Archaeolambdidae'
- 'Nannocetus [misspelled as Nanisocetus] belongs to Cetacea'
- 'Nannolithax belongs to Odontoceti'
- 'Nannopterygius belongs to Leptopterygiidae'
- 'Nannospondylus belongs to Trimerorhachidae'
- 'Nanochoerus belongs to Leptochoeridae'
- 'Nanocynodon belongs to Galesauridae'
- 'Nanomilleretta belongs to Millerettidae'
- 'Nanoparia belongs to Pareiasauridae'
- 'Nanosaurus belongs to Hypsilophodontidae'
- 'Nanotragulus belongs to Hypertragulidae'
- 'Naranius belongs to Palaeoryctidae'
- 'Nasua belongs to Procyonidae'
- 'Natalidae belongs to Vespertilionoidea'
- 'Natrix belongs to Colubridae'
- 'Navahoceros belongs to Cervidae'
- 'Navajosuchus belongs to Crocodylidae'
- 'Neanis belongs to Primobucconidae'
- 'Nebraskophis belongs to Colubridae'
- 'Necromanis belongs to Manidae'
- 'Necrosauridae belongs to Varanoidea'
- 'Necrosaurus belongs to Necrosauridae'
- 'Necrosuchus belongs to Crocodylidae'
- 'Nectridea was reranked as a order and belongs to Lepospondyli'
- 'Necturus belongs to Proteidae'
- 'Neldasaurus belongs to Trimerorhachidae'
- 'Nematherium belongs to Mylodontidae'
- 'Nemegtosaurus belongs to Diplodocidae'
- 'Neoaetosauroides belongs to Stagnolepididae'
- 'Neochelys belongs to Pelomedusidae'
- 'Neococcyx belongs to Cuculidae'
- 'Neocynodesmus belongs to Canidae'
- 'Neodiacodexis belongs to Antiacodontinae'
- 'Neogaeornis belongs to Baptornithidae'
- 'Neognathae belongs to Neornithes'
- 'Neohipparion belongs to Equidae'
- 'Neomatronella belongs to Erinaceidae'
- 'Neomys belongs to Soricidae'
- 'Neonatrix belongs to Colubridae'
- 'Neonematherium belongs to Mylodontidae'
- 'Neophrontops belongs to Accipitridae'
- 'Neoprocolophon belongs to Procolophonidae'
- 'Neopteroplax belongs to Eogyrinidae'
- 'Neornithes belongs to Aves'
- 'Neosaurus belongs to Sphenacodontidae'
- 'Neosqualodon belongs to Squalodontidae'
- 'Neotamandua belongs to Myrmecophagidae'
- 'Neotherium belongs to Odobaenidae'
- 'Neothoracophorus belongs to Glyptodontidae'
- 'Neotragocerus belongs to Bovidae'
- 'Nerodia belongs to Colubridae'
- 'Nesiotites belongs to Soricidae'
- 'Nesodactylus belongs to Rhamphorhynchidae'
- 'Nesodon belongs to Toxodontidae'
- 'Nesodonopsis belongs to Toxodontidae'
- 'Nesohippus belongs to Notohippidae'
- 'Nesotrochis belongs to Rallidae'
- 'Nestoritherium belongs to Chalicotheriidae'
- 'Neurankylidae belongs to Baenoidea'
- 'Neurankylus belongs to Neurankylidae'
- 'Neurogymnurus belongs to Erinaceidae'
- 'Neurotrichus belongs to Talpidae'
- 'Neuryurus belongs to Glyptodontidae'
- 'Neusibatrachus belongs to Palaeobatrachidae'
- 'Newtonella belongs to Dicynodontia'
- 'Nicrosaurus belongs to Phytosauridae'
- 'Nigeropheidae belongs to Acrochordoidea'
- 'Nimravidae belongs to Aeluroidea'
- 'Nimravides belongs to Felidae'
- 'Niolamia belongs to Meiolaniidae'
- 'Nipponosaurus belongs to Hadrosauridae'
- 'Nisidorcas belongs to Bovidae'
- 'Nitosaurus belongs to Pelycosauria'
- 'Noasaurus belongs to Theropoda'
- 'Nodosauridae belongs to Ankylosauria'
- 'Nodosaurus belongs to Nodosauridae'
- 'Nopachtus belongs to Glyptodontidae'
- 'Noripterus belongs to Dsungaripteridae'
- 'Nothocyon belongs to Canidae'
- 'Nothoprocta belongs to Tinamidae'
- 'Nothosauria belongs to Sauropterygia'
- 'Nothosauridae belongs to Nothosauria'
- 'Nothosaurus belongs to Nothosauridae'
- 'Nothotylopus belongs to Camelidae'
- 'Nothrotheriops belongs to Megatheriidae'
- 'Nothrotherium belongs to Megatheriidae'
- 'Nothura belongs to Tinamidae'
- 'Notiocetus belongs to Balaenopteridae'
- 'Notiomastodon belongs to Gomphotheriidae'
- 'Notioprogonia belongs to Notoungulata'
- 'Notiosorex belongs to Soricidae'
- 'Notobatrachus belongs to Ascaphidae'
- 'Notobrachyops belongs to Brachyopidae'
- 'Notoceratops belongs to Hadrosauridae'
- 'Notochampsa belongs to Protosuchidae'
- 'Notochoerus belongs to Suidae'
- 'Notodiaphorus belongs to Macraucheniidae'
- 'Notohippidae belongs to Toxodontia'
- 'Notohippus belongs to Notohippidae'
- 'Notomeryx belongs to Hypertragulidae'
- 'Notophthalmus belongs to Salamandridae'
- 'Notopithecus belongs to Interatheriidae'
- 'Notostylopidae belongs to Notioprogonia'
- 'Notostylops belongs to Notostylopidae'
- 'Notosuchidae belongs to Mesosuchia'
- 'Notosuchus belongs to Notosuchidae'
- 'Notosyodon belongs to Brithopodidae'
- 'Notoungulata belongs to Eutheria'
- 'Nucleornis belongs to Spheniscidae'
- 'Numididae belongs to Galliformes'
- 'Nyanzachoerus belongs to Suidae'
- 'Nyctanassa belongs to Ardeidae'
- 'Nyctereutes belongs to Canidae'
- 'Nycteroleter belongs to Nycteroleteridae'
- 'Nycteroleteridae belongs to Anthracosauria'
- 'Nyctiboetus belongs to Seymouriidae'
- 'Nycticonodon belongs to Soricomorpha'
- 'Nycticorax belongs to Ardeidae'
- 'Nyctiphruretidae belongs to Procolophonoidea'
- 'Nyctiphruretus belongs to Nyctiphruretidae'
- 'Nyctisaura was reranked as a infraorder and belongs to Lacertilia'
- 'Nyctitheriidae belongs to Soricomorpha'
- 'Nyctitherium belongs to Nyctitheriidae'
- 'Obdurodon belongs to Ornithorhynchidae'
- 'Oblitavis belongs to Idiornithidae'
- 'Ocadia belongs to Emydidae'
- 'Occitaniavis belongs to Idiornithidae'
- 'Oceanites belongs to Oceanitidae'
- 'Oceanitidae belongs to Procellariiformes'
- 'Oceanodroma belongs to Oceanitidae'
- 'Ochotonidae belongs to Lagomorpha'
- 'Ocnerotherium belongs to Toxodontidae'
- 'Octodontidae belongs to Octodontoidea'
- 'Octodontoidea belongs to Caviomorpha'
- 'Octodontotherium belongs to Mylodontidae'
- 'Octomylodon belongs to Mylodontidae'
- 'Odaxosaurus belongs to Anguidae'
- 'Odenwaldia belongs to Benthosuchidae'
- 'Odobaenidae is corrected as Odobenidae and belongs to Otarioidea'
- 'Odobenus belongs to Odobaenidae'
- 'Odocoileus belongs to Cervidae'
- 'Odonterpeton belongs to Odonterpetontidae'
- 'Odonterpetontidae belongs to Microbrachomorpha'
- 'Odontoceti belongs to Cetacea'
- 'Odontognathae belongs to Neornithes'
- 'Odontopterygia belongs to Pelecaniformes'
- 'Odontopteryx belongs to Pelagornithidae'
- 'Oedaleops belongs to Eothyrididae'
- 'Oedolithax belongs to Odontoceti'
- 'Oedolius belongs to Nyctitheriidae'
- 'Ogmophis belongs to Boidae'
- 'Ogygoptyngidae belongs to Strigiformes'
- 'Ogygoptynx belongs to Ogygoptyngidae'
- 'Oioceros belongs to Bovidae'
- 'Oldfieldthomasiidae belongs to Toxodontia'
- 'Oligobunis belongs to Mustelidae'
- 'Oligodelphis belongs to Squalodontidae'
- 'Oligodontosauridae belongs to Annulata'
- 'Oligodontosaurus belongs to Oligodontosauridae'
- 'Oligokyphus belongs to Tritylodontidae'
- 'Oligoscalops belongs to Proscalopidae'
- 'Oligosemia belongs to Salamandridae'
- 'Oligosorex belongs to Soricidae'
- 'Olonbulukia belongs to Bovidae'
- 'Olsenia belongs to Chalicotheriidae'
- 'Omeisaurus belongs to Euhelopodidae'
- 'Omoiotyphlops belongs to Amphisbaenidae'
- 'Omomyidae belongs to Tarsiiformes'
- 'Omorhamphus belongs to Diatrymidae'
- 'Omphalosauridae belongs to Ichthyopterygia'
- 'Omphalosaurus belongs to Omphalosauridae'
- 'Onactornis belongs to Phorusrhacidae'
- 'Onchiodon belongs to Eryopidae'
- 'Onohippidium belongs to Equidae'
- 'Ontocetus belongs to Physeteridae'
- 'Ophiacodon belongs to Ophiacodontidae'
- 'Ophiacodontidae belongs to Pelycosauria'
- 'Ophiderpeton belongs to Ophiderpetontidae'
- 'Ophiderpetontidae belongs to Aistopoda'
- 'Ophidium is a misspelling of Ophidion'
- 'Ophidium belongs to Serpentes'
- 'Ophipseudopus belongs to Anguidae'
- 'Ophisauriscus belongs to Anguidae'
- 'Ophisaurus belongs to Anguidae'
- 'Ophthalmosaurus belongs to Ichthyosauridae'
- 'Opisthias belongs to Sphenodontidae'
- 'Opisthocoelicaudia belongs to Camarasauridae'
- 'Opisthocomidae belongs to Cuculiformes'
- 'Opisthodactylidae belongs to Rheiformes'
- 'Opisthodactylus belongs to Opisthodactylidae'
- 'Opisthotriton belongs to Batrachosauroididae'
- 'Oplurus belongs to Iguanidae'
- 'Orasius belongs to Bovidae'
- 'Orchonoceros belongs to Bovidae'
- 'Orcinus belongs to Delphinidae'
- 'Oreamnos belongs to Bovidae'
- 'Orenburgia belongs to Procolophonidae'
- 'Oreonager belongs to Bovidae'
- 'Oreopithecidae belongs to Cercopithecoidea'
- 'Oreotragus belongs to Bovidae'
- 'Oriadubitherium belongs to Toxodontidae'
- 'Ornatotholus belongs to Pachycephalosauridae'
- 'Ornimegalonyx belongs to Strigidae'
- 'Ornithischia belongs to Archosauria'
- 'Ornithocheiridae belongs to Pterodactyloidea'
- 'Ornithocheirus belongs to Ornithocheiridae'
- 'Ornithodesmus belongs to Ornithocheiridae'
- 'Ornitholestes belongs to Coeluridae'
- 'Ornithomimidae belongs to Theropoda'
- 'Ornithomimoides belongs to Theropoda'
- 'Ornithomimus belongs to Ornithomimidae'
- 'Ornithopoda belongs to Ornithischia'
- 'Ornithorhynchidae belongs to Monotremata'
- 'Ornithorhynchus belongs to Ornithorhynchidae'
- 'Ornithosuchia belongs to Thecodontia'
- 'Ornithosuchidae belongs to Ornithosuchia'
- 'Ornithosuchus belongs to Ornithosuchidae'
- 'Orohippus belongs to Equidae'
- 'Oroklambda belongs to Pantolambdodontidae'
- 'Oromerycidae belongs to Cameloidea'
- 'Oromeryx belongs to Oromerycidae'
- 'Orophodon belongs to Mylodontidae'
- 'Orthaspidotherium belongs to Meniscotheriidae'
- 'Orthogenysuchus belongs to Crocodylidae'
- 'Orthomerus belongs to Hadrosauridae'
- 'Orthophyia belongs to Proteidae'
- 'Orycterocetus belongs to Physeteridae'
- 'Orycteropodidae belongs to Tubulidentata'
- 'Orycteropus belongs to Orycteropodidae'
- 'Orygotherium belongs to Bovidae'
- 'Oryx belongs to Bovidae'
- 'Osbornoceros belongs to Antilocapridae'
- 'Osmotherium belongs to Mustelidae'
- 'Osteodontornis belongs to Pelagornithidae'
- 'Osteolaemus belongs to Crocodylidae'
- 'Osteophorus belongs to Eryopidae'
- 'Osteopygis belongs to Toxochelyidae'
- 'Ostodolepidae [misspelled as Ostodolepididae] belongs to Tuditanomorpha'
- 'Ostodolepis belongs to Ostodolepididae'
- 'Otariina was reranked as the family Otariidae and belongs to Otarioidea'
- 'Otarioidea belongs to Carnivora'
- 'Othnielia belongs to Hypsilophodontidae'
- 'Othnielmarshia belongs to Henricosborniidae'
- 'Otididae belongs to Charadriiformes'
- 'Otis belongs to Otididae'
- 'Otocyon belongs to Canidae'
- 'Ototriton belongs to Rhineuridae'
- 'Otrhonia [misspelled as Otronia] belongs to Notostylopidae'
- 'Otsheria belongs to Venjukoviidae'
- 'Ottoceros belongs to Antilocapridae'
- 'Otus belongs to Strigidae'
- 'Oudenodontidae belongs to Pristerodontia'
- 'Ouranosaurus belongs to Iguanodontidae'
- 'Ovibos belongs to Bovidae'
- 'Oviraptor belongs to Oviraptoridae'
- 'Oviraptoridae belongs to Theropoda'
- 'Ovis belongs to Bovidae'
- 'Owenetta belongs to Nyctiphruretidae'
- 'Oweniasuchus belongs to Goniophididae'
- 'Oxyacodon belongs to Periptychidae'
- 'Oxyaenidae belongs to Creodonta'
- 'Oxybunotherium belongs to Didolodontidae'
- 'Oxydactylus belongs to Camelidae'
- 'Ozotoceros belongs to Cervidae'
- 'Pachyacanthus belongs to Platanistidae'
- 'Pachyaena belongs to Mesonychidae'
- 'Pachybiotherium belongs to Didelphidae'
- 'Pachycephalosauria belongs to Ornithischia'
- 'Pachycephalosauridae belongs to Pachycephalosauria'
- 'Pachycephalosaurus belongs to Pachycephalosauridae'
- 'Pachycetus belongs to Archaeoceti'
- 'Pachycrocuta belongs to Hyaenidae'
- 'Pachycynodon belongs to Canidae'
- 'Pachydyptes belongs to Spheniscidae'
- 'Pachygazella belongs to Bovidae'
- 'Pachygenelus belongs to Tritheledontidae'
- 'Pachygonia belongs to Benthosuchidae'
- 'Pachyhyrax belongs to Pliohyracidae'
- 'Pachyophis belongs to Serpentes'
- 'Pachyornis belongs to Dinornithidae'
- 'Pachypleuridae is corrected as Pachypleurosauridae and belongs to Nothosauria'
- 'Pachypleurosaurus belongs to Pachypleuridae'
- 'Pachyportax belongs to Bovidae'
- 'Pachyptila belongs to Procellariidae'
- 'Pachyrhinosaurus belongs to Ceratopsidae'
- 'Pachyrukhos belongs to Hegetotheriidae'
- 'Pachystropheus belongs to Sphenodontidae'
- 'Pachytegos belongs to Endothiodontidae'
- 'Pachytitan belongs to Brontotheridae'
- 'Pachytragus belongs to Bovidae'
- 'Pachyvaranus belongs to Varanidae'
- 'Padiochelys belongs to Thalassemyidae'
- 'Paedsotherium belongs to Hegetotheriidae'
- 'Paenelimnoecus belongs to Soricidae'
- 'Paginula belongs to Oldfieldthomasiidae'
- 'Pakicetus belongs to Protocetidae'
- 'Pakotitanops belongs to Brontotheridae'
- 'Palacrodon belongs to Sphenodontidae'
- 'Palaeagama belongs to Paliguanidae'
- 'Palaeanodon belongs to Metacheiromyidae'
- 'Palaeanodonta belongs to Pholidota'
- 'Palaeaspis belongs to Pelomedusidae'
- 'Palaeeudyptes [misspelled as Palaeondyptes] belongs to Spheniscidae'
- 'Palaelodus belongs to Phoenicopteridae'
- 'Palaeoamasia belongs to Arsinoitheriidae'
- 'Palaeoaramides belongs to Rallidae'
- 'Palaeobatrachidae belongs to Anura'
- 'Palaeobatrachus belongs to Palaeobatrachidae'
- 'Palaeocetus belongs to Balaenopteridae'
- 'Palaeochenoides belongs to Pelagornithidae'
- 'Palaeochoerus belongs to Tayassuidae'
- 'Palaeocryptonyx belongs to Phasianidae'
- 'Palaeodoedicurus belongs to Glyptodontidae'
- 'Palaeoephippiorhynchus belongs to Ciconiiformes'
- 'Palaeognathae belongs to Neornithes'
- 'Palaeogrus belongs to Gruidae'
- 'Palaeoherpeton belongs to Eogyrinidae'
- 'Palaeohierax belongs to Accipitridae'
- 'Palaeohoplophorus belongs to Glyptodontidae'
- 'Palaeohypsodontus belongs to Bovidae'
- 'Palaeolacerta belongs to Bavarisauridae'
- 'Palaeolama belongs to Camelidae'
- 'Palaeomalpolon belongs to Colubridae'
- 'Palaeomastodon belongs to Gomphotheriidae'
- 'Palaeomeles belongs to Mustelidae'
- 'Palaeomerycidae belongs to Cervoidea'
- 'Palaeomeryx belongs to Palaeomerycidae'
- 'Palaeomolgophis belongs to Adelogyrinidae'
- 'Palaeomyrmedon belongs to Myrmecophagidae'
- 'Palaeonaja belongs to Elapidae'
- 'Palaeonatrix belongs to Colubridae'
- 'Palaeopeltidae belongs to Dasypodoidea'
- 'Palaeopeltis belongs to Palaeopeltidae'
- 'Palaeophasianus belongs to Geranoididae'
- 'Palaeophidae belongs to Booidea'
- 'Palaeophocaena belongs to Phocaenidae'
- 'Palaeopleurodeles belongs to Salamandridae'
- 'Palaeopleurosaurus belongs to Pleurosauridae'
- 'Palaeoprionodon belongs to Viverridae'
- 'Palaeopropithecidae belongs to Indrioidea'
- 'Palaeoproteus belongs to Batrachosauroididae'
- 'Palaeopsittacus belongs to Psittacidae'
- 'Palaeopython belongs to Boidae'
- 'Palaeorallus belongs to Rallidae'
- 'Palaeoreas belongs to Bovidae'
- 'Palaeortyx belongs to Phasianidae'
- 'Palaeoryctes belongs to Palaeoryctidae'
- 'Palaeoryctidae belongs to Cimolesta'
- 'Palaeoryx belongs to Bovidae'
- 'Palaeosaniwa belongs to Varanidae'
- 'Palaeoscincus belongs to Nodosauridae'
- 'Palaeoscinidae belongs to Passeriformes'
- 'Palaeoscinis belongs to Palaeoscinidae'
- 'Palaeospheniscus belongs to Spheniscidae'
- 'Palaeostylops belongs to Arctostylopidae'
- 'Palaeosyops belongs to Brontotheridae'
- 'Palaeotapirus belongs to Tapiridae'
- 'Palaeotis belongs to Struthionidae'
- 'Palaeotodus belongs to Todidae'
- 'Palaeotoxodon belongs to Toxodontidae'
- 'Palaeotragus belongs to Giraffidae'
- 'Palaeoxantusia belongs to Xantusiidae'
- 'Palaeoziphius belongs to Ziphiidae'
- 'Palasiodon belongs to Hyopsodontidae'
- 'Palatobaena belongs to Baenidae'
- 'Palemydops belongs to Emydopidae'
- 'Paleofarancia belongs to Colubridae'
- 'Paleoheterodon belongs to Colubridae'
- 'Paleoparadoxia belongs to Desmostylidae'
- 'Paleophoca [misspelled as Palaeophoca] belongs to Phocidae'
- 'Paleosuchus belongs to Alligatoridae'
- 'Paleosula belongs to Sulidae'
- 'Paleothyris belongs to Protorothyrididae'
- 'Paleotrionyx belongs to Trionychidae'
- 'Paleryx belongs to Boidae'
- 'Paleuphractus belongs to Dasypodidae'
- 'Paliguana belongs to Paliguanidae'
- 'Paliguanidae belongs to Eolacertilia'
- 'Palinhyaena belongs to Hyaenidae'
- 'Palintropus belongs to Cimolopterygidae'
- 'Pallimnarchus belongs to Crocodylidae'
- 'Pallisteria belongs to Thecodontia'
- 'Paloplotherium is a subjective synonym of Plagiolophus'
- 'Paludavis belongs to Balaenicipitidae'
- 'Palyeidodon belongs to Toxodontidae'
- 'Pampatherium belongs to Dasypodidae'
- 'Pandion belongs to Pandionidae'
- 'Pandionidae belongs to Falconiformes'
- 'Pannonictis belongs to Mustelidae'
- 'Panochthus belongs to Glyptodontidae'
- 'Panoplosaurus belongs to Nodosauridae'
- 'Pantodonta belongs to Eutheria'
- 'Pantolambda belongs to Pantolambdidae'
- 'Pantolambdidae belongs to Pantodonta'
- 'Pantolambdodon belongs to Pantolambdodontidae'
- 'Pantolambdodontidae belongs to Pantodonta'
- 'Pantylidae belongs to Tuditanomorpha'
- 'Pantylus belongs to Pantylidae'
- 'Paoteodon belongs to Procolophonidae'
- 'Pappaceras belongs to Hyracodontidae'
- 'Pappidictops belongs to Miacidae'
- 'Pappocetus belongs to Protocetidae'
- 'Papposaurus belongs to Proterogyrinidae'
- 'Parabenthosuchus belongs to Benthosuchidae'
- 'Parabos belongs to Bovidae'
- 'Parabrachyodus belongs to Anthracotheriidae'
- 'Parabradysaurus belongs to Estemmenosuchidae'
- 'Parabreviodon belongs to Lophialetidae'
- 'Parabrontops belongs to Brontotheridae'
- 'Paracadurcodon belongs to Amynodontidae'
- 'Paracamelus belongs to Camelidae'
- 'Paracathartes belongs to Lithornidae'
- 'Paraceratherium belongs to Hyracodontidae'
- 'Paracervulus belongs to Cervidae'
- 'Paracochilius belongs to Interatheriidae'
- 'Paracolodon belongs to Tapiroidea'
- 'Paracoluber belongs to Colubridae'
- 'Paracontogenys belongs to Scincidae'
- 'Paracrax belongs to Bathornithidae'
- 'Paractiornis belongs to Glareolidae'
- 'Paractitis belongs to Scolopacidae'
- 'Paracyclotosaurus belongs to Capitosauridae'
- 'Paradaphoenus belongs to Amphicyonidae'
- 'Paraderma belongs to Helodermatidae'
- 'Paradiceros belongs to Rhinocerotidae'
- 'Paradidelphys belongs to Didelphidae'
- 'Paradipsosaurus belongs to Iguanidae'
- 'Paraentelodon belongs to Entelodontidae'
- 'Paraepicrates belongs to Boidae'
- 'Paraeuphractus belongs to Dasypodidae'
- 'Paragale belongs to Mustelidae'
- 'Paragalerhinus belongs to Gorgonopsidae'
- 'Paragelocus belongs to Gelocidae'
- 'Parageogale belongs to Tenrecidae'
- 'Paragerrhonotus belongs to Anguidae'
- 'Paraglyphanodon belongs to Teiidae'
- 'Paraglyptodon belongs to Glyptodontidae'
- 'Paraglyptosaurus belongs to Anguidae'
- 'Paragrus belongs to Geranoididae'
- 'Parahesperornis belongs to Hesperornidae'
- 'Parahydraspis belongs to Chelidae'
- 'Parahyus belongs to Helohyinae'
- 'Parailurus belongs to Procyonidae'
- 'Parakannemeyeria belongs to Kannemeyeriidae'
- 'Paralichelys belongs to Pelomedusidae'
- 'Paralligator belongs to Paralligatoridae'
- 'Paralligatoridae belongs to Mesosuchia'
- 'Paralophiodon belongs to Isectolophidae'
- 'Paralutra belongs to Mustelidae'
- 'Paramacellodidae belongs to Leptoglossa'
- 'Paramacellodus belongs to Paramacellodidae'
- 'Paramachaerodus belongs to Felidae'
- 'Paramacrauchenia belongs to Macraucheniidae'
- 'Paramynodon belongs to Amynodontidae'
- 'Paranictops belongs to Pseudictopidae'
- 'Paranothosaurus belongs to Nothosauridae'
- 'Paranourosorex belongs to Soricidae'
- 'Paranteosaurus belongs to Anteosauridae'
- 'Paranthodon belongs to Stegosauridae'
- 'Paranyroca belongs to Anatidae'
- 'Paraortygometra belongs to Rallidae'
- 'Paraoxybelis belongs to Colubridae'
- 'Parapeltecoelus belongs to Dasypodidae'
- 'Parapithecidae belongs to Parapithecoidea'
- 'Parapithecoidea belongs to Catarrhini'
- 'Paraplacodus belongs to Placodontidae'
- 'Parapontoporia [misspelled as Parapontoparia] belongs to Pontoporiidae'
- 'Paraprionosaurus belongs to Lacertilia'
- 'Paraprotoryx belongs to Bovidae'
- 'Parapseudopus belongs to Anguidae'
- 'Parapsicephalus belongs to Rhamphorhynchidae'
- 'Paraptenodytes belongs to Spheniscidae'
- 'Pararallus belongs to Rallidae'
- 'Pararctotherium belongs to Ursidae'
- 'Parasaniwa belongs to Necrosauridae'
- 'Parasaurolophus belongs to Hadrosauridae'
- 'Parasauromalus belongs to Iguanidae'
- 'Parasaurus belongs to Pareiasauridae'
- 'Parascalops belongs to Talpidae'
- 'Parasqualodon belongs to Squalodontidae'
- 'Parastrapotherium belongs to Astrapotheriidae'
- 'Parasuchus belongs to Phytosauridae'
- 'Paratalpa belongs to Talpidae'
- 'Parataxidea belongs to Mustelidae'
- 'Parathrinaxodon belongs to Procynosuchidae'
- 'Paratoceras belongs to Protoceratidae'
- 'Paratrigodon belongs to Toxodontidae'
- 'Paratrogon belongs to Trogonidae'
- 'Paravaranidae belongs to Diploglossa'
- 'Paravaranus belongs to Paravaranidae'
- 'Paraxiphodon belongs to Xiphodontidae'
- 'Pardirallus belongs to Rallidae'
- 'Pareiasauridae belongs to Pareiasauroidea'
- 'Pareiasauroidea belongs to Captorhinida'
- 'Pareiasaurus belongs to Pareiasauridae'
- 'Parictis belongs to Ursidae'
- 'Parietobalaena belongs to Cetotheriidae'
- 'Pariotichus belongs to Gymnarthridae'
- 'Parioxyidae belongs to Eryopoidea'
- 'Parioxys belongs to Parioxyidae'
- 'Parksosaurus belongs to Hypsilophodontidae'
- 'Parmularius belongs to Bovidae'
- 'Parodaxosaurus belongs to Anguidae'
- 'Paroedura belongs to Gekkonidae'
- 'Paroligobunis belongs to Mustelidae'
- 'Paromomyoidea belongs to Plesiadapiformes'
- 'Paronychodon belongs to Dromaeosauridae'
- 'Paroodectes belongs to Miacidae'
- 'Parotosuchus belongs to Capitosauridae'
- 'Paroxyclaenidae belongs to Condylarthra'
- 'Parringtonia belongs to Erpetosuchidae'
- 'Parringtoniella belongs to Dicynodontia'
- 'Partanosaurus belongs to Nothosauria'
- 'Parurmiatherium belongs to Bovidae'
- 'Parviderma belongs to Necrosauridae'
- 'Parvitragulus belongs to Hypertragulidae'
- 'Paschatherium belongs to Hyopsodontidae'
- 'Pascualgnathus belongs to Traversodontidae'
- 'Passeriformes belongs to Neognathae'
- 'Passerina belongs to Fringillidae'
- 'Pastoralodon belongs to Pastoralodontidae'
- 'Pastoralodontidae belongs to Pantodonta'
- 'Pataecops belongs to Lophialetidae'
- 'Patagosaurus belongs to Cetiosauridae'
- 'Patriocetus belongs to Squalodontidae'
- 'Patriomanis belongs to Manidae'
- 'Paulogervaisia belongs to Didolodontidae'
- 'Paurodontidae belongs to Eupantotheria'
- 'Pecarichoerus belongs to Tayassuidae'
- 'Pecora belongs to Ruminantia'
- 'Pectinodon belongs to Saurornithoididae'
- 'Pedeticosaurus belongs to Protosuchidae'
- 'Pedetidae belongs to Pedetoidea'
- 'Pedetoidea belongs to Sciurognathi'
- 'Pedionomidae belongs to Charadriiformes'
- 'Peipehsuchus belongs to Pholidosauridae'
- 'Peirosaurus belongs to Uruguaysuchidae'
- 'Peishanemys [misspelled as Peshanemys] belongs to Dermatemydidae'
- 'Pelagornis belongs to Pelagornithidae'
- 'Pelagornithidae belongs to Odontopterygia'
- 'Pelagosaurus belongs to Metriorhynchidae'
- 'Pelargopappus belongs to Sagittariidae'
- 'Pelea belongs to Bovidae'
- 'Pelecani belongs to Pelecaniformes'
- 'Pelecanidae belongs to Pelecani'
- 'Pelecaniformes belongs to Neognathae'
- 'Pelecanoides belongs to Pelecanoididae'
- 'Pelecanoididae belongs to Procellariiformes'
- 'Pelecanus belongs to Pelecanidae'
- 'Pelecomastes belongs to Chelidae'
- 'Pelecymala belongs to Sphenodontidae'
- 'Pelecyodon belongs to Megalonychidae'
- 'Pelobates belongs to Pelobatidae'
- 'Pelobatidae belongs to Anura'
- 'Pelocetus belongs to Cetotheriidae'
- 'Pelodelphis belongs to Delphinidae'
- 'Pelodosotis belongs to Ostodolepidae'
- 'Pelodytidae belongs to Anura'
- 'Pelomedusa belongs to Pelomedusidae'
- 'Pelomedusidae belongs to Pleurodira'
- 'Peloneustes belongs to Pliosauridae'
- 'Pelophilus belongs to Discoglossidae'
- 'Pelorocephalus belongs to Chigutisauridae'
- 'Pelorosaurus belongs to Brachiosauridae'
- 'Pelorovis belongs to Bovidae'
- 'Peltecoelus belongs to Dasypodidae'
- 'Peltephilus belongs to Dasypodidae'
- 'Peltobatrachidae belongs to Rhinesuchoidea'
- 'Peltobatrachus belongs to Peltobatrachidae'
- 'Peltosaurus belongs to Anguidae'
- 'Peltostega belongs to Rhytidosteidae'
- 'Pelurocoelodon belongs to Isotemnidae'
- 'Pelycosauria belongs to Synapsida'
- 'Peneteius belongs to Teiidae'
- 'Penetrigonias belongs to Rhinocerotidae'
- 'Pentacemylus belongs to Artiodactyla'
- 'Pentaceratops belongs to Ceratopsidae'
- 'Pentalophodon belongs to Gomphotheriidae'
- 'Peraceras belongs to Rhinocerotidae'
- 'Peraiocynodon belongs to Docodontidae'
- 'Peramuridae belongs to Eupantotheria'
- 'Peratosauroides belongs to Batrachosauroididae'
- 'Peratotherium belongs to Didelphidae'
- 'Perchoerus belongs to Tayassuidae'
- 'Percrocuta belongs to Hyaenidae'
- 'Perhippidion belongs to Notohippidae'
- 'Perimia belongs to Bovidae'
- 'Peripantostylops belongs to Henricosborniidae'
- 'Periphragnis belongs to Isotemnidae'
- 'Peripolocetus belongs to Cetotheriidae'
- 'Periptychidae belongs to Condylarthra'
- 'Periptychus belongs to Periptychidae'
- 'Perissodactyla was reranked as a order and belongs to Eutheria'
- 'Peritresius belongs to Toxochelyidae'
- 'Perparvus belongs to Kuehneosauridae'
- 'Perunium belongs to Mustelidae'
- 'Pessosaurus belongs to Shastasauridae'
- 'Peteinosaurus belongs to Dimorphodontidae'
- 'Petrolacosauridae belongs to Araeoscelida'
- 'Petrolacosaurus belongs to Petrolacosauridae'
- 'Petrosuchus belongs to Pholidosauridae'
- 'Peyerus belongs to Pliosauridae'
- 'Pezophaps belongs to Columbidae'
- 'Phacochoerus belongs to Suidae'
- 'Phaedrolosaurus belongs to Dromaeosauridae'
- 'Phaethontes belongs to Pelecaniformes'
- 'Phaethontidae belongs to Phaethontes'
- 'Phalacrocoracidae belongs to Sulae'
- 'Phalacrocorax belongs to Phalacrocoracidae'
- 'Phalarodon belongs to Omphalosauridae'
- 'Phascolodon belongs to Amphilestinae'
- 'Phascolotherium belongs to Amphilestinae'
- 'Phasianidae belongs to Galliformes'
- 'Phelsuma belongs to Gekkonidae'
- 'Phenacodontidae belongs to Condylarthra'
- 'Phenacodus belongs to Phenacodontidae'
- 'Phenacolophidae belongs to Condylarthra'
- 'Phenacolophus belongs to Phenacolophidae'
- 'Philander belongs to Didelphidae'
- 'Philotrox belongs to Canidae'
- 'Phiomia belongs to Gomphotheriidae'
- 'Phiomorpha belongs to Hystricognathi'
- 'Phiomyidae belongs to Thryonomyoidea'
- 'Phlaocyon belongs to Canidae'
- 'Phlegethontia belongs to Phlegethontiidae'
- 'Phlegethontiidae belongs to Aistopoda'
- 'Phoberocyon belongs to Ursidae'
- 'Phoberodon belongs to Squalodontidae'
- 'Phoca belongs to Phocidae'
- 'Phocadae is corrected as Phocidae and belongs to Arctoidea'
- 'Phocaena belongs to Phocaenidae'
- 'Phocaenina was reranked as the family Phocaenidae and belongs to Odontoceti'
- 'Phocaenopsis belongs to Phocaenidae'
- 'Phocageneus belongs to Delphinidae'
- 'Phocanella belongs to Phocidae'
- 'Phocosaurus belongs to Tapinocephalidae'
- 'Phoeniconotius belongs to Phoenicopteridae'
- 'Phoenicopteridae belongs to Charadriiformes'
- 'Phoenicopterus belongs to Phoenicopteridae'
- 'Phoeniculidae belongs to Bucerotiformes'
- 'Phoenixauchenia belongs to Macraucheniidae'
- 'Pholiderpeton belongs to Eogyrinidae'
- 'Pholidocercus belongs to Amphilemuridae'
- 'Pholidogaster belongs to Colosteidae'
- 'Pholidosauridae belongs to Mesosuchia'
- 'Pholidosaurus belongs to Pholidosauridae'
- 'Phoradiadius belongs to Proterotheriidae'
- 'Phororhacosidae is corrected as Phorusrhacidae and belongs to Cariamae'
- 'Phorusrhacos belongs to Phorusrhacidae'
- 'Phosphatosaurus belongs to Dyrosauridae'
- 'Phreatophasma belongs to Caseidae'
- 'Phrynops belongs to Chelidae'
- 'Phrynosoma belongs to Iguanidae'
- 'Phthinosaurus belongs to Phthinosuchidae'
- 'Phthinosuchidae belongs to Eotitanosuchia'
- 'Phthinosuchus belongs to Phthinosuchidae'
- 'Phyllodactylus belongs to Gekkonidae'
- 'Phyllodon belongs to Hypsilophodontidae'
- 'Phyllostomatidae belongs to Phyllostomatoidea'
- 'Phyllostomatoidea belongs to Microchiroptera'
- 'Phyllotillon belongs to Chalicotheriidae'
- 'Physeter belongs to Physeteridae'
- 'Physeteridae belongs to Odontoceti'
- 'Physeterula belongs to Physeteridae'
- 'Physetodon belongs to Physeteridae'
- 'Physornis belongs to Phorusrhacidae'
- 'Phytosauria belongs to Thecodontia'
- 'Phytosauridae belongs to Phytosauria'
- 'Piatnitzkysaurus belongs to Allosauridae'
- 'Piceoerpeton belongs to Scapherpetonidae'
- 'Picidae belongs to Piciformes'
- 'Piciformes belongs to Neognathae'
- 'Picrodontidae belongs to Paromomyoidea'
- 'Pilgrimella belongs to Anthracobunidae'
- 'Pilosa belongs to Xenarthra'
- 'Pinacosaurus belongs to Ankylosauridae'
- 'Pinaosuchus belongs to Goniophididae'
- 'Pinguinus belongs to Alcidae'
- 'Pinnarctidion belongs to Enaliarctidae'
- 'Pipidae belongs to Anura'
- 'Piptomerus belongs to Plesiosauria'
- 'Piratosaurus belongs to Plesiosauria'
- 'Pisanodon belongs to Toxodontidae'
- 'Pisanosaurus belongs to Heterodontosauridae'
- 'Piscolithax belongs to Phocaenidae'
- 'Piscophoca [misspelled as Pisciphoca] belongs to Phocidae'
- 'Pithanodelphis belongs to Kentriodontidae'
- 'Pithanotaria belongs to Otariidae'
- 'Piveteausaurus belongs to Allosauridae'
- 'Placentidens belongs to Placentidentinae'
- 'Placerias belongs to Kannemeyeriidae'
- 'Placochelys belongs to Cyamodontidae'
- 'Placodontia belongs to Archosauria'
- 'Placodontidae belongs to Placodontia'
- 'Placodus belongs to Placodontidae'
- 'Placosaurus belongs to Anguidae'
- 'Plagiarthus belongs to Interatheriidae'
- 'Plagiobatrachus belongs to Plagiosauridae'
- 'Plagiocristodon belongs to Mesonychidae'
- 'Plagioctenodon belongs to Nyctitheriidae'
- 'Plagioctenoides belongs to Nyctitheriidae'
- 'Plagiorophus belongs to Plagiosauridae'
- 'Plagiosauridae belongs to Plagiosauroidea'
- 'Plagiosauroidea belongs to Temnospondyli'
- 'Plagiosaurus belongs to Plagiosauridae'
- 'Plagiosternum belongs to Plagiosauridae'
- 'Plagiosuchus belongs to Plagiosauridae'
- 'Planiplastron belongs to Chelydridae'
- 'Planocephalosaurus belongs to Sphenodontidae'
- 'Planocrania belongs to Crocodylidae'
- 'Planops belongs to Megatheriidae'
- 'Plastomenus belongs to Trionychidae'
- 'Plataleidae belongs to Charadriiformes'
- 'Platanistina was reranked as the family Platanistidae and belongs to Odontoceti'
- 'Platecarpus belongs to Mosasauridae'
- 'Platemys belongs to Chelidae'
- 'Plateosaurus belongs to Anchisauridae'
- 'Platybelodon belongs to Gomphotheriidae'
- 'Platybos belongs to Bovidae'
- 'Platycerabos belongs to Bovidae'
- 'Platychelyidae belongs to Pleurodira'
- 'Platychelys belongs to Platychelyidae'
- 'Platycraniellus belongs to Galesauridae'
- 'Platydyptes belongs to Spheniscidae'
- 'Platygonus belongs to Tayassuidae'
- 'Platyhystrix belongs to Dissorophidae'
- 'Platylithax belongs to Odontoceti'
- 'Platyognathidae belongs to Protosuchia'
- 'Platyognathus belongs to Platyognathidae'
- 'Platyoposaurus belongs to Archegosauridae'
- 'Platyosphys belongs to Basilosauridae'
- 'Platyphoca belongs to Phocidae'
- 'Platypterygius belongs to Leptopterygiidae'
- 'Platyrrhini belongs to Anthropoidea'
- 'Platyspondylia belongs to Boidae'
- 'Platystega belongs to Trematosauridae'
- 'Platysuchus belongs to Teleosauridae'
- 'Plaxhaplous belongs to Glyptodontidae'
- 'Plegadis belongs to Plataleidae'
- 'Plesiaceratherium belongs to Rhinocerotidae'
- 'Plesiadapidae belongs to Plesiadapoidea'
- 'Plesiadapiformes belongs to Primates'
- 'Plesiadapoidea belongs to Plesiadapiformes'
- 'Plesiaddax belongs to Bovidae'
- 'Plesiarctomys belongs to Ischyromyidae'
- 'Plesictis belongs to Procyonidae'
- 'Plesiobaena belongs to Baenidae'
- 'Plesiocathartes belongs to Vulturidae'
- 'Plesiocetus belongs to Balaenopteridae'
- 'Plesiochelyidae belongs to Chelonioidea'
- 'Plesiochelys belongs to Plesiochelyidae'
- 'Plesiodimylus belongs to Dimylidae'
- 'Plesiogale belongs to Mustelidae'
- 'Plesiogulo belongs to Mustelidae'
- 'Plesiolacerta belongs to Lacertidae'
- 'Plesiomegatherium belongs to Megatheriidae'
- 'Plesiomeles belongs to Mustelidae'
- 'Plesiorhineura belongs to Rhineuridae'
- 'Plesiorycteropus belongs to Orycteropodidae'
- 'Plesiosauria belongs to Sauropterygia'
- 'Plesiosauridae belongs to Plesiosauroidea'
- 'Plesiosauroidea belongs to Plesiosauria'
- 'Plesiosaurus belongs to Plesiosauridae'
- 'Plesiosaurus (Pleiosaurus) was reranked as Pliosaurus and belongs to Pliosauridae'
- 'Plesiosorex belongs to Plesiosoricidae'
- 'Plesiotortrix belongs to Boidae'
- 'Plesiotylosaurus belongs to Mosasauridae'
- 'Plethodon belongs to Plethodontidae'
- 'Plethodontidae belongs to Plethodontoidea'
- 'Plethodontoidea belongs to Urodeles'
- 'Pleuraspidotherium belongs to Meniscotheriidae'
- 'Pleuroceros belongs to Rhinocerotidae'
- 'Pleurocyon (Simidectes) was reranked as Simidectes and belongs to Pantolesta'
- 'Pleurodeles belongs to Salamandridae'
- 'Pleurodira belongs to Chelonia'
- 'Pleurosauridae belongs to Sphenodonta'
- 'Pleurosaurus belongs to Pleurosauridae'
- 'Pleurosternidae belongs to Chelonia'
- 'Pleurosternon belongs to Pleurosternidae'
- 'Pleurostylodon belongs to Isotemnidae'
- 'Pliauchenia belongs to Camelidae'
- 'Pliauchenia (Megatylopus) was reranked as Megatylopus and belongs to Camelidae'
- 'Pliobatrachus belongs to Palaeobatrachidae'
- 'Pliocarbo belongs to Phalacrocoracidae'
- 'Plioceros belongs to Antilocapridae'
- 'Pliocervus belongs to Cervoidea'
- 'Pliocyon belongs to Amphicyonidae'
- 'Pliogale belongs to Mustelidae'
- 'Pliogonodon belongs to Goniophididae'
- 'Pliogrus belongs to Gruidae'
- 'Pliogyps belongs to Vulturidae'
- 'Pliohippus belongs to Equidae'
- 'Pliohippus (Astrohippus) was reranked as Astrohippus and belongs to Equidae'
- 'Pliohyracidae belongs to Hyracoidea'
- 'Pliohyrax belongs to Pliohyracidae'
- 'Pliomastodon belongs to Mammutidae'
- 'Pliometanastes belongs to Megalonychidae'
- 'Plionarctos belongs to Ursidae'
- 'Plionictis belongs to Mustelidae'
- 'Pliopedia belongs to Odobaenidae'
- 'Pliopicus belongs to Picidae'
- 'Pliopithecidae belongs to Hominoidea'
- 'Plioplatecarpus belongs to Mosasauridae'
- 'Pliopontos belongs to Pontoporiidae'
- 'Pliosauridae belongs to Pliosauroidea'
- 'Pliosauroidea belongs to Plesiosauria'
- 'Pliotaxidea belongs to Mustelidae'
- 'Pliotragus belongs to Bovidae'
- 'Plioviverrops belongs to Hyaenidae'
- 'Plithocyon belongs to Ursidae'
- 'Plotopteridae belongs to Sulae'
- 'Plotopterum belongs to Plotopteridae'
- 'Plotornis belongs to Diomedeidae'
- 'Plotosaurus belongs to Mosasauridae'
- 'Pneumatoarthrus belongs to Protostegidae'
- 'Pneumatostega belongs to Rhytidosteidae'
- 'Poabromylus belongs to Protoceratidae'
- 'Podargidae belongs to Caprimulgiformes'
- 'Podiceps belongs to Podicipedidae'
- 'Podicipedidae belongs to Podicipediformes'
- 'Podicipediformes belongs to Neognathae'
- 'Podocnemis belongs to Pelomedusidae'
- 'Podokesauridae belongs to Theropoda'
- 'Podokesaurus belongs to Podokesauridae'
- 'Poebrodon belongs to Camelidae'
- 'Poebrotherium belongs to Camelidae'
- 'Poekilopleuron belongs to Megalosauridae'
- 'Polyacrodon belongs to Proterotheriidae'
- 'Polyborus belongs to Falconidae'
- 'Polydectes belongs to Goniophididae'
- 'Polyglyphanodon belongs to Teiidae'
- 'Polymorphis belongs to Proterotheriidae'
- 'Polyptchodon belongs to Pliosauridae'
- 'Polysphenodon belongs to Sphenodontidae'
- 'Polysternon belongs to Pelomedusidae'
- 'Pomatodelphis is corrected as Potamodelphis and belongs to Acrodelphidae'
- 'Pongidae belongs to Hominoidea'
- 'Pontifactor belongs to Nyctitheriidae'
- 'Pontistes belongs to Pontoporiidae'
- 'Pontistes belongs to Platanistidae'
- 'Pontivaga belongs to Platanistidae'
- 'Pontogeneus belongs to Basilosauridae'
- 'Pontolis belongs to Odobaenidae'
- 'Pontoporiidae belongs to Odontoceti'
- 'Pontosaurus belongs to Dolichosauridae'
- 'Poposauridae belongs to Rauisuchia'
- 'Poposaurus belongs to Poposauridae'
- 'Portlandemys belongs to Plesiochelyidae'
- 'Postosuchus belongs to Poposauridae'
- 'Postpalerinaceus belongs to Erinaceidae'
- 'Postschizotherium belongs to Pliohyracidae'
- 'Potamochelys belongs to Pelomedusidae'
- 'Potamochoeroides belongs to Suidae'
- 'Potamochoerus belongs to Suidae'
- 'Potamosiren belongs to Manatidae'
- 'Potamotherium belongs to Mustelidae'
- 'Praekogia belongs to Physeteridae'
- 'Praemancalla belongs to Alcidae'
- 'Praemegaceros belongs to Cervidae'
- 'Praeovibos belongs to Bovidae'
- 'Praolestes belongs to Anagalida'
- 'Pratifelis belongs to Felidae'
- 'Pravoslavleria belongs to Gorgonopsidae'
- 'Prenocephale belongs to Pachycephalosauridae'
- 'Prepotherium belongs to Megatheriidae'
- 'Presbyornis belongs to Presbyornithidae'
- 'Presbyornithidae belongs to Anseriformes'
- 'Presictis belongs to Mustelidae'
- 'Prestosuchus belongs to Rauisuchidae'
- 'Priacodon belongs to Triconodontidae'
- 'Primapus belongs to Aegialornithidae'
- 'Primates belongs to Eutheria'
- 'Primelephas belongs to Elephantidae'
- 'Primobucco belongs to Primobucconidae'
- 'Primobucconidae belongs to Coracii'
- 'Priodontognathus belongs to Nodosauridae'
- 'Prioinia is corrected as Proinia and belongs to Platanistidae'
- 'Prionochelys belongs to Toxochelyidae'
- 'Prionosuchus belongs to Archegosauridae'
- 'Priscocamelus belongs to Camelidae'
- 'Priscophyseter belongs to Physeteridae'
- 'Pristerodon belongs to Pristerodontidae'
- 'Pristerodontia belongs to Dicynodontia'
- 'Pristerodontidae belongs to Pristerodontia'
- 'Pristerognathidae belongs to Therocephalia'
- 'Pristerognathus belongs to Pristerognathidae'
- 'Pristichampsus belongs to Crocodylidae'
- 'Proaceratherium belongs to Rhinocerotidae'
- 'Proacris belongs to Hylidae'
- 'Proaigialosaurus belongs to Aigialosauridae'
- 'Proailurus belongs to Felidae'
- 'Proamblysomus belongs to Chrysochloridae'
- 'Proamphibos belongs to Bovidae'
- 'Proamphiuma belongs to Amphiumidae'
- 'Proantilocapra belongs to Antilocapridae'
- 'Proanura belongs to Lepospondyli'
- 'Proardea belongs to Ardeidae'
- 'Probactrosaurus belongs to Iguanodontidae'
- 'Probainognathus belongs to Chiniquodontidae'
- 'Probelesodon belongs to Chiniquodontidae'
- 'Proboscidea belongs to Eutheria'
- 'Probrachyodus belongs to Anthracotheriidae'
- 'Proburnetia belongs to Burnetiidae'
- 'Procadurcodon belongs to Amynodontidae'
- 'Procaimanoidea belongs to Alligatoridae'
- 'Procamelus belongs to Camelidae'
- 'Procamptoceros is corrected as Procamptoceras and belongs to Bovidae'
- 'Procapra belongs to Bovidae'
- 'Procapreolus belongs to Cervidae'
- 'Procavia belongs to Procaviidae'
- 'Procaviidae belongs to Hyracoidea'
- 'Procellaria belongs to Procellariidae'
- 'Procellariidae belongs to Procellariiformes'
- 'Procellariiformes belongs to Neognathae'
- 'Proceratosaurus belongs to Ceratosauridae'
- 'Procerosuchus belongs to Rauisuchidae'
- 'Procervulus belongs to Palaeomerycidae'
- 'Prochrysochloris belongs to Chrysochloridae'
- 'Procobus belongs to Bovidae'
- 'Procolophon belongs to Procolophonidae'
- 'Procolophonia belongs to Captorhinida'
- 'Procolophonidae belongs to Procolophonoidea'
- 'Procolophonoidea belongs to Procolophonia'
- 'Procolophonoides belongs to Procolophonidae'
- 'Procolpochelys belongs to Cheloniidae'
- 'Procompsognathus belongs to Podokesauridae'
- 'Procrax belongs to Cracidae'
- 'Procynops belongs to Salamandridae'
- 'Procynosuchia belongs to Cynodontia'
- 'Procynosuchidae belongs to Procynosuchia'
- 'Procynosuchus belongs to Procynosuchidae'
- 'Procyon belongs to Procyonidae'
- 'Procyonidae belongs to Arctoidea'
- 'Prodamaliscus belongs to Bovidae'
- 'Prodeinotherium belongs to Deinotheriidae'
- 'Prodesmodon belongs to Batrachosauroididae'
- 'Prodicynodon belongs to Dicynodontia'
- 'Prodiplocynodon belongs to Alligatoridae'
- 'Prodiscoglossus belongs to Discoglossidae'
- 'Prodremotherium belongs to Leptomerycidae'
- 'Proectocion belongs to Didolodontidae'
- 'Proedium belongs to Mesotheriidae'
- 'Proetus belongs to Dasypodidae'
- 'Proeuphractus belongs to Dasypodidae'
- 'Proganochelydia belongs to Chelonia'
- 'Proganochelyidae belongs to Proganochelydia'
- 'Proganochelys belongs to Proganochelyidae'
- 'Progenetta belongs to Viverridae'
- 'Progiraffa belongs to Giraffidae'
- 'Prognathodon belongs to Mosasauridae'
- 'Progura belongs to Megapodidae'
- 'Prohegetotherium belongs to Hegetotheriidae'
- 'Proheptoconus belongs to Adianthidae'
- 'Prohyracodon belongs to Hyracodontidae'
- 'Prohyrax belongs to Procaviidae'
- 'Prolacerta belongs to Prolacertidae'
- 'Prolacertidae belongs to Protorosauria'
- 'Prolacertoides belongs to Prolacertidae'
- 'Proleptobos belongs to Bovidae'
- 'Prolibytherium belongs to Giraffidae'
- 'Prolicaphrium belongs to Proterotheriidae'
- 'Prolipotes belongs to Pontoporiidae'
- 'Promacrauchenia belongs to Macraucheniidae'
- 'Promartes belongs to Mustelidae'
- 'Promastodonsaurus belongs to Capitosauridae'
- 'Promegatherium belongs to Megatheriidae'
- 'Promeles belongs to Mustelidae'
- 'Promellivora belongs to Mustelidae'
- 'Promephitis belongs to Mustelidae'
- 'Promesochoerus belongs to Suidae'
- 'Prominatherium belongs to Anthracotheriidae'
- 'Promusophaga belongs to Lithornidae'
- 'Proneusticosaurus belongs to Nothosauridae'
- 'Pronodens belongs to Leptomerycidae'
- 'Pronothrotherium belongs to Megatheriidae'
- 'Propachyrucos belongs to Hegetotheriidae'
- 'Propalaeanodon belongs to Metacheiromyidae'
- 'Propalaehoplophorus [misspelled as Propalaeohoplophorus] belongs to Glyptodontidae'
- 'Propalaeochoerus belongs to Suidae'
- 'Propalaeomeryx belongs to Giraffidae'
- 'Propelargus belongs to Idiornithidae'
- 'Prophaethon belongs to Prophaethontidae'
- 'Prophaethontidae belongs to Phaethontes'
- 'Prophoca belongs to Phocidae'
- 'Prophyseter belongs to Physeteridae'
- 'Proplatyarthrus belongs to Megalonychidae'
- 'Proplatynotia belongs to Diploglossa'
- 'Propontosmilus belongs to Felidae'
- 'Propotamochoerus belongs to Suidae'
- 'Propotto belongs to Pteropodidae'
- 'Propraopus belongs to Dasypodidae'
- 'Proputorius belongs to Mustelidae'
- 'Propyrotherium belongs to Pyrotheriidae'
- 'Prorastomidae belongs to Sirenia'
- 'Prorastomus belongs to Prorastomidae'
- 'Prorosmarus belongs to Odobaenidae'
- 'Prorubidgea belongs to Gorgonopsidae'
- 'Prosansanosmilus belongs to Felidae'
- 'Prosantorhinus belongs to Rhinocerotidae'
- 'Prosarcodon belongs to Micropternodontidae'
- 'Prosaurolophus belongs to Hadrosauridae'
- 'Prosauropoda belongs to Sauropodomorpha'
- 'Proscalopidae belongs to Soricomorpha'
- 'Proscalops belongs to Proscalopidae'
- 'Proscapanus belongs to Talpidae'
- 'Proscelidodon belongs to Mylodontidae'
- 'Proschismotherium belongs to Megatheriidae'
- 'Prosimii belongs to Primates'
- 'Prosinotragus belongs to Bovidae'
- 'Prosiren belongs to Prosirenidae'
- 'Prosirenidae belongs to Prosirenoidea'
- 'Prosirenoidea belongs to Urodeles'
- 'Prosotherium belongs to Hegetotheriidae'
- 'Prosqualodon belongs to Squalodontidae'
- 'Prostegotherium belongs to Dasypodidae'
- 'Prosthecion belongs to Meniscotheriidae'
- 'Prosthennops belongs to Tayassuidae'
- 'Prostrepsiceros belongs to Bovidae'
- 'Prosybris belongs to Tytonidae'
- 'Protacmon is a subjective synonym of Diademodon'
- 'Protamandua belongs to Myrmecophagidae'
- 'Protanancus belongs to Gomphotheriidae'
- 'Protapirus belongs to Tapiridae'
- 'Protarctos belongs to Mustelidae'
- 'Protechinus belongs to Erinaceidae'
- 'Proteidae belongs to Proteoidea'
- 'Protembolotherium belongs to Brontotheridae'
- 'Protemnocyon belongs to Amphicyonidae'
- 'Protenrec belongs to Tenrecidae'
- 'Proteoidea belongs to Urodeles'
- 'Proterochampsa belongs to Proterochampsidae'
- 'Proterochampsidae belongs to Proterosuchia'
- 'Proterochersidae belongs to Proganochelydia'
- 'Proterochersis belongs to Proterochersidae'
- 'Proterogyrinidae belongs to Embolomeri'
- 'Proterogyrinus belongs to Proterogyrinidae'
- 'Proterosuchia belongs to Thecodontia'
- 'Proterosuchidae belongs to Proterosuchia'
- 'Proterotheriidae belongs to Litopterna'
- 'Proterotherium belongs to Proterotheriidae'
- 'Proteurynotus belongs to Amphicentridae'
- 'Proteus belongs to Proteidae'
- 'Protheosodon belongs to Didolodontidae'
- 'Prothoatherium belongs to Proterotheriidae'
- 'Proticia belongs to Colombitheriidae'
- 'Protictitherium belongs to Hyaenidae'
- 'Protitan belongs to Brontotheridae'
- 'Protitanops belongs to Brontotheridae'
- 'Protitanotherium belongs to Brontotheridae'
- 'Protoaceratherium belongs to Rhinocerotidae'
- 'Protobalaena belongs to Balaenidae'
- 'Protobatrachidae belongs to Proanura'
- 'Protocaptorhinus belongs to Captorhinidae'
- 'Protoceras belongs to Protoceratidae'
- 'Protoceratidae belongs to Tylopoda'
- 'Protoceratops belongs to Protoceratopsidae'
- 'Protoceratopsidae belongs to Ceratopsia'
- 'Protocetidae belongs to Archaeoceti'
- 'Protocetus belongs to Protocetidae'
- 'Protochelydra belongs to Chelydridae'
- 'Protochelys belongs to Toxochelyidae'
- 'Protoclepsydrops belongs to Ophiacodontidae'
- 'Protocyon belongs to Canidae'
- 'Protodelphinus belongs to Delphinidae'
- 'Protodichobune belongs to Dichobunidae'
- 'Protodidelphis belongs to Didelphidae'
- 'Protohippus (Calippus) was reranked as Calippus and belongs to Equidae'
- 'Protoichthyosauridae belongs to Ichthyopterygia'
- 'Protoichthyosaurus belongs to Protoichthyosauridae'
- 'Protolabis belongs to Camelidae'
- 'Protolipterna belongs to Protolipternidae'
- 'Protolipternidae belongs to Litopterna'
- 'Protopelicanus belongs to Pelecanidae'
- 'Protophocaena belongs to Phocaenidae'
- 'Protoplotus belongs to Anhingidae'
- 'Protoreodon belongs to Agriochoeridae'
- 'Protornis belongs to Momotidae'
- 'Protorosauria belongs to Archosauromorpha'
- 'Protorosauridae belongs to Protorosauria'
- 'Protorosaurus belongs to Protorosauridae'
- 'Protorothyrididae belongs to Captorhinomorpha'
- 'Protorothyris belongs to Protorothyrididae'
- 'Protoryx belongs to Bovidae'
- 'Protosiren belongs to Protosirenidae'
- 'Protosirenidae belongs to Sirenia'
- 'Protosphargis belongs to Dermochelyidae'
- 'Protostega belongs to Protostegidae'
- 'Protostegidae belongs to Chelonioidea'
- 'Protostrigidae belongs to Strigiformes'
- 'Protosuchia belongs to Crocodylia'
- 'Protosuchidae belongs to Protosuchia'
- 'Protosuchus belongs to Protosuchidae'
- 'Prototheria belongs to Mammalia'
- 'Prototocyon belongs to Canidae'
- 'Protoziphius belongs to Ziphiidae'
- 'Protragelaphus belongs to Bovidae'
- 'Protragocerus belongs to Bovidae'
- 'Protrogomorpha belongs to Sciurognathi'
- 'Protropidonotus belongs to Colubridae'
- 'Protylopus belongs to Oromerycidae'
- 'Protypotherium belongs to Interatheriidae'
- 'Provaranosaurus belongs to Necrosauridae'
- 'Proxestops belongs to Anguidae'
- 'Prozaedius belongs to Dasypodidae'
- 'Prozeuglodon belongs to Basilosauridae'
- 'Psephoderma belongs to Cyamodontidae'
- 'Psephophorus belongs to Dermochelyidae'
- 'Psephosaurus belongs to Cyamodontidae'
- 'Pseudacris belongs to Hylidae'
- 'Pseudaelurus belongs to Felidae'
- 'Pseudamphicyon belongs to Amphicyonidae'
- 'Pseudamphimeryx belongs to Amphimerycidae'
- 'Pseudanisonchus belongs to Periptychidae'
- 'Pseudanosteira [misspelled as Pseudoanosteira] belongs to Carettochelyidae'
- 'Pseudaptenodytes belongs to Spheniscidae'
- 'Pseudarctos belongs to Amphicyonidae'
- 'Pseudaxis belongs to Cervidae'
- 'Pseudeumeces belongs to Lacertidae'
- 'Pseudeutatus belongs to Dasypodidae'
- 'Pseudhapalops belongs to Megatheriidae'
- 'Pseudhesperosuchus [misspelled as Pseudohesperosuchus] belongs to Sphenosuchidae'
- 'Pseudhipparion belongs to Equidae'
- 'Pseudhipposaurus belongs to Hipposauridae'
- 'Pseudhyrax belongs to Archaeohyracidae'
- 'Pseudictopidae belongs to Anagalida'
- 'Pseudobos belongs to Bovidae'
- 'Pseudobranchus belongs to Sirenidae'
- 'Pseudocemophora belongs to Colubridae'
- 'Pseudoceras belongs to Gelocidae'
- 'Pseudocivetta belongs to Viverridae'
- 'Pseudocordylodon belongs to Dimylidae'
- 'Pseudocyon belongs to Amphicyonidae'
- 'Pseudocyonopsis belongs to Amphicyonidae'
- 'Pseudodontornis belongs to Pelagornithidae'
- 'Pseudoepicrates [misspelled as Pseudopicrates] belongs to Boidae'
- 'Pseudohegetotherium belongs to Hegetotheriidae'
- 'Pseudolabis belongs to Camelidae'
- 'Pseudolacerta belongs to Cordylidae'
- 'Pseudomeryx belongs to Leptomerycidae'
- 'Pseudoparablastomeryx belongs to Leptomerycidae'
- 'Pseudoprepotherium belongs to Mylodontidae'
- 'Pseudoprotoceras belongs to Protoceratidae'
- 'Pseudorhineura belongs to Rhineuridae'
- 'Pseudorhyncocyon belongs to Pseudorhyncocyonidae'
- 'Pseudorhyncocyonidae belongs to Leptictida'
- 'Pseudosaurillus belongs to Paramacellodidae'
- 'Pseudostegotherium belongs to Dasypodidae'
- 'Pseudotragus belongs to Bovidae'
- 'Pseudotriconodon belongs to Chiniquodontidae'
- 'Pseudotriton belongs to Plethodontidae'
- 'Pseudotypotherium belongs to Mesotheriidae'
- 'Psilopterus belongs to Phorusrhacidae'
- 'Psilotrachelosaurus belongs to Pachypleuridae'
- 'Psittacidae belongs to Psittaciformes'
- 'Psittaciformes belongs to Neognathae'
- 'Psittacosauridae belongs to Ceratopsia'
- 'Psittacosaurus belongs to Psittacosauridae'
- 'Psittacus belongs to Psittacidae'
- 'Psophiidae belongs to Grues'
- 'Pteranodon belongs to Ornithocheiridae'
- 'Pterocles belongs to Pteroclidae'
- 'Pteroclidae belongs to Columbiformes'
- 'Pterodactylidae belongs to Pterodactyloidea'
- 'Pterodactyloidea belongs to Pterosauria'
- 'Pterodactylus belongs to Pterodactylidae'
- 'Pterodaustridae belongs to Pterodactyloidea'
- 'Pterodaustro belongs to Pterodaustridae'
- 'Pterodroma belongs to Procellariidae'
- 'Pteroplax belongs to Eogyrinidae'
- 'Pteropodidae belongs to Megachiroptera'
- 'Pterosauria belongs to Archosauria'
- 'Pterosphenus belongs to Palaeophidae'
- 'Pterygoboa belongs to Boidae'
- 'Ptychadena belongs to Ranidae'
- 'Ptychogaster belongs to Emydidae'
- 'Ptychoramphus belongs to Alcidae'
- 'Ptyonius belongs to Urocordylidae'
- 'Puercosaurus [misspelled as Peurcosaurus] belongs to Captorhinidae'
- 'Puffinus belongs to Procellariidae'
- 'Pultiphagonides belongs to Bovidae'
- 'Puntanipterus belongs to Dsungaripteridae'
- 'Puppigerus belongs to Cheloniidae'
- 'Putterillia belongs to Lydekkerinidae'
- 'Pygoscelis belongs to Spheniscidae'
- 'Pyramiodontherium belongs to Megatheriidae'
- 'Pyrotheria belongs to Eutheria'
- 'Pyrotheriidae belongs to Pyrotheria'
- 'Pyrotherium belongs to Pyrotheriidae'
- 'Python belongs to Boidae'
- 'Qianshanosaurus belongs to Lacertilia'
- 'Quadrodens belongs to Talpidae'
- 'Quaesitosaurus belongs to Diplodocidae'
- 'Querandiornis belongs to Tinamidae'
- 'Quercygale belongs to Viverravidae'
- 'Quercylurus belongs to Felidae'
- 'Quercyrallus belongs to Rallidae'
- 'Quetzalcoatlus belongs to Ornithocheiridae'
- 'Quinkana belongs to Crocodylidae'
- 'Quipollornis belongs to Aegothelidae'
- 'Qurliqnoria belongs to Bovidae'
- 'Rabaticeras belongs to Bovidae'
- 'Rabdodon is corrected as Rhabdodon and belongs to Iguanodontidae'
- 'Rabidosaurus belongs to Kannemeyeriidae'
- 'Rakomylus belongs to Camelidae'
- 'Ralli belongs to Gruiformes'
- 'Rallicrex belongs to Rallidae'
- 'Rallidae belongs to Ralli'
- 'Rallus belongs to Rallidae'
- 'Ramoceros belongs to Antilocapridae'
- 'Ramonellus belongs to Prosirenidae'
- 'Rana belongs to Ranidae'
- 'Rangifer belongs to Cervidae'
- 'Ranidae belongs to Anura'
- 'Raoella belongs to Helohyidae'
- 'Rapator belongs to Theropoda'
- 'Raphenacodus belongs to Artiodactyla'
- 'Raphicerus belongs to Bovidae'
- 'Raphus belongs to Columbidae'
- 'Rauisuchia belongs to Thecodontia'
- 'Rauisuchidae belongs to Rauisuchia'
- 'Rauisuchus belongs to Rauisuchidae'
- 'Raulringueletia belongs to Hegetotheriidae'
- 'Rebbachisaurus belongs to Brachiosauridae'
- 'Rechnisaurus belongs to Kannemeyeriidae'
- 'Recurvirostra belongs to Recurvirostridae'
- 'Recurvirostridae belongs to Charadriiformes'
- 'Redunca belongs to Bovidae'
- 'Regina belongs to Colubridae'
- 'Regisaurus belongs to Ictidosuchidae'
- 'Remiculus belongs to Mixodectidae'
- 'Remiornis belongs to Diatrymidae'
- 'Restes belongs to Xenosauridae'
- 'Rewana belongs to Indobrachyopidae'
- 'Rhabdognathus belongs to Dyrosauridae'
- 'Rhabdopelix belongs to Kuehneosauridae'
- 'Rhabdosteidae belongs to Odontoceti'
- 'Rhabdosteus belongs to Platanistidae'
- 'Rhachianectes is a subjective synonym of Eschrichtius'
- 'Rhachiocephalus belongs to Oudenodontidae'
- 'Rhacophoridae belongs to Anura'
- 'Rhacophorus belongs to Rhacophoridae'
- 'Rhadinorhinus belongs to Brontotheridae'
- 'Rhadiodromus belongs to Kannemeyeriidae'
- 'Rhaeticonia belongs to Nothosauridae'
- 'Rhagatherium belongs to Haplobunodontidae'
- 'Rhamphorhynchidae belongs to Rhamphorhynchoidea'
- 'Rhamphorhynchoidea belongs to Pterosauria'
- 'Rhamphorhynchus belongs to Rhamphorhynchidae'
- 'Rhamphosuchus belongs to Gavialidae'
- 'Rhegminornis belongs to Phasianidae'
- 'Rhegnopsis belongs to Cetotheriidae'
- 'Rheidae belongs to Rheiformes'
- 'Rheiformes belongs to Palaeognathae'
- 'Rhinatrematidae belongs to Gymnophiona'
- 'Rhineceps belongs to Rhinesuchidae'
- 'Rhinesuchidae belongs to Rhinesuchoidea'
- 'Rhinesuchoidea belongs to Temnospondyli'
- 'Rhinesuchoides belongs to Rhinesuchidae'
- 'Rhinesuchus belongs to Rhinesuchidae'
- 'Rhineura belongs to Rhineuridae'
- 'Rhineuridae belongs to Annulata'
- 'Rhinocerocephalus belongs to Kannemeyeriidae'
- 'Rhinocerolophiodon belongs to Lophiodontidae'
- 'Rhinoceros belongs to Rhinocerotidae'
- 'Rhinocerotidae belongs to Rhinocerotoidea'
- 'Rhinocerotoidea belongs to Ceratomorpha'
- 'Rhinochelys belongs to Cheloniidae'
- 'Rhinochelys belongs to Protostegidae'
- 'Rhinodicynodon belongs to Kannemeyeriidae'
- 'Rhinolophidae belongs to Rhinolophoidea'
- 'Rhinolophoidea belongs to Microchiroptera'
- 'Rhinophrynidae belongs to Anura'
- 'Rhinophrynus belongs to Rhinophrynidae'
- 'Rhinosauriscus belongs to Seymouriidae'
- 'Rhinotitan belongs to Brontotheridae'
- 'Rhiodenticulatus belongs to Captorhinidae'
- 'Rhipaeosauridae belongs to Pareiasauroidea'
- 'Rhipaeosaurus belongs to Rhipaeosauridae'
- 'Rhizomyidae belongs to Spalacoidea'
- 'Rhodanogekko belongs to Gekkonidae'
- 'Rhodopagus belongs to Hyracodontidae'
- 'Rhoetosaurus belongs to Cetiosauridae'
- 'Rhomaleosaurus belongs to Pliosauridae'
- 'Rhombomylus belongs to Eurymylidae'
- 'Rhopalodon belongs to Estemmenosuchidae'
- 'Rhynchaeites belongs to Plataleidae'
- 'Rhynchippus belongs to Notohippidae'
- 'Rhynchonkos belongs to Goniorhynchidae'
- 'Rhynchosauria belongs to Archosauromorpha'
- 'Rhynchosauridae belongs to Rhynchosauria'
- 'Rhynchosaurus belongs to Rhynchosauridae'
- 'Rhynchotherium belongs to Gomphotheriidae'
- 'Rhynchotragus belongs to Bovidae'
- 'Rhynochetidae belongs to Grues'
- 'Rhynotragus belongs to Bovidae'
- 'Rhyphodon belongs to Isotemnidae'
- 'Rhytidosteidae belongs to Rhytidosteoidea'
- 'Rhytidosteoidea belongs to Temnospondyli'
- 'Rhytidosteus belongs to Rhytidosteidae'
- 'Riacama belongs to Cariamidae'
- 'Ribodon belongs to Manatidae'
- 'Ricnodon belongs to Hapsidopareiontidae'
- 'Riebeeckosaurus belongs to Tapinocephalidae'
- 'Ringueletia belongs to Dasypodidae'
- 'Riojasaurus belongs to Melanorosauridae'
- 'Riojasuchus belongs to Ornithosuchidae'
- 'Robertia belongs to Robertiidae'
- 'Robertiidae belongs to Diictodontia'
- 'Rodentia belongs to Eutheria'
- 'Romainvillia belongs to Anseres'
- 'Romeria belongs to Captorhinidae'
- 'Romeriscus belongs to Limnoscelidae'
- 'Ronzotherium belongs to Rhinocerotidae'
- 'Rosasia belongs to Pelomedusidae'
- 'Rostratulidae belongs to Charadriiformes'
- 'Rothianiscus belongs to Captorhinidae'
- 'Roxochelys belongs to Pelomedusidae'
- 'Rubidgea belongs to Gorgonopsidae'
- 'Rubidgina belongs to Ictidorhinidae'
- 'Ruminantia belongs to Artiodactyla'
- 'Rupicapra belongs to Bovidae'
- 'Rusconiodon belongs to Traversodontidae'
- 'Russellopheidae belongs to Colubroidea'
- 'Russellophis belongs to Russellopheidae'
- 'Ruticeros belongs to Bovidae'
- 'Rutiodon belongs to Phytosauridae'
- 'Rutitherium belongs to Leptomerycidae'
- 'Rytiodus belongs to Dugongidae'
- 'Sabadellictis belongs to Mustelidae'
- 'Sachalinocetus belongs to Squalodontidae'
- 'Saghatherium belongs to Procaviidae'
- 'Sagittariidae belongs to Falconiformes'
- 'Saichania belongs to Ankylosauridae'
- 'Saiga belongs to Bovidae'
- 'Sakya belongs to Emydidae'
- 'Salamandra belongs to Salamandridae'
- 'Salamandridae belongs to Salamandroidea'
- 'Salamandrina belongs to Salamandridae'
- 'Salamandroidea belongs to Urodeles'
- 'Saltasaurus belongs to Titanosauridae'
- 'Saltenia belongs to Pipidae'
- 'Saltoposuchidae belongs to Sphenosuchia'
- 'Saltoposuchus belongs to Saltoposuchidae'
- 'Saltopus belongs to Podokesauridae'
- 'Salumiphocaena is corrected as Salumniphocaena and belongs to Phocaenidae'
- 'Salvadora belongs to Colubridae'
- 'Samokeros belongs to Bovidae'
- 'Samotherium belongs to Giraffidae'
- 'Sangusaurus belongs to Kannemeyeriidae'
- 'Sanitherium belongs to Suidae'
- 'Saniwa belongs to Varanidae'
- 'Saniwides belongs to Varanidae'
- 'Sansanosmilus belongs to Felidae'
- 'Santaisaurus belongs to Procolophonidae'
- 'Santanadactylus belongs to Ornithocheiridae'
- 'Sapheosaurus belongs to Sphenodontidae'
- 'Sarcocyon belongs to Amphicyonidae'
- 'Sarcodon belongs to Micropternodontidae'
- 'Sarcolestes belongs to Nodosauridae'
- 'Sarcoramphus belongs to Vulturidae'
- 'Sarcosuchus belongs to Pholidosauridae'
- 'Sarmatodelphis belongs to Kentriodontidae'
- 'Sarmatosula belongs to Sulidae'
- 'Sassenisaurus belongs to Capitosauridae'
- 'Sastrilophus belongs to Isectolophidae'
- 'Satherium belongs to Mustelidae'
- 'Saturninia belongs to Plesiosoricidae'
- 'Sauravus belongs to Scincosauridae'
- 'Saurerpeton belongs to Saurerpetontidae'
- 'Saurerpetontidae belongs to Trimerorhachoidea'
- 'Saurillodon belongs to Paramacellodidae'
- 'Saurillus belongs to Paramacellodidae'
- 'Saurischia belongs to Archosauria'
- 'Saurischiocomes belongs to Proterochersidae'
- 'Sauriscus belongs to Scincidae'
- 'Saurocetus belongs to Squalodontidae'
- 'Sauroctonus belongs to Gorgonopsidae'
- 'Saurodelphis belongs to Platanistidae'
- 'Saurolophus belongs to Hadrosauridae'
- 'Sauromalus belongs to Iguanidae'
- 'Sauropelta belongs to Nodosauridae'
- 'Sauropleura belongs to Urocordylidae'
- 'Sauroplites belongs to Ankylosauridae'
- 'Sauropoda belongs to Dinosauria' according to O. C. Marsh 1882
- 'Sauropodomorpha belongs to Saurischia'
- 'Sauropterygia was reranked as a superorder and belongs to Lepidosauromorpha'
- 'Saurornithoides belongs to Saurornithoididae'
- 'Saurornithoididae belongs to Theropoda'
- 'Saurornitholestes belongs to Dromaeosauridae'
- 'Saurosphargis belongs to Cyamodontidae'
- 'Saurosternon belongs to Paliguanidae'
- 'Saurosuchus belongs to Rauisuchidae'
- 'Saxonerpeton belongs to Hapsidopareiontidae'
- 'Sazavis belongs to Enantiornithidae'
- 'Scaglia belongs to Astrapotheriidae'
- 'Scaldicetus belongs to Physeteridae'
- 'Scalenodon belongs to Traversodontidae'
- 'Scalenodontoides belongs to Traversodontidae'
- 'Scalopoides belongs to Talpidae'
- 'Scalopolacerta belongs to Scaloposauridae'
- 'Scaloposauridae belongs to Therocephalia'
- 'Scaloposaurus belongs to Scaloposauridae'
- 'Scalopus belongs to Talpidae'
- 'Scandentia belongs to Eutheria'
- 'Scapanus belongs to Talpidae'
- 'Scapherpeton belongs to Scapherpetonidae'
- 'Scapherpetonidae is corrected as Scapherpetontidae and belongs to Ambystomatoidea'
- 'Scaphiopus belongs to Pelobatidae'
- 'Scaphognathus belongs to Rhamphorhynchidae'
- 'Scaphonyx belongs to Rhynchosauridae'
- 'Scaptochirus belongs to Talpidae'
- 'Scaptogale belongs to Talpidae'
- 'Scaptonyx belongs to Talpidae'
- 'Scarrittia belongs to Leontiniidae'
- 'Scelidodon belongs to Mylodontidae'
- 'Scelidosauridae belongs to Stegosauria'
- 'Scelidosaurus belongs to Scelidosauridae'
- 'Scelidotherium belongs to Mylodontidae'
- 'Sceloporus belongs to Iguanidae'
- 'Scharschengia belongs to Sphenodontidae'
- 'Schismotherium belongs to Megatheriidae'
- 'Schizochoerus belongs to Suidae'
- 'Schizodelphis belongs to Acrodelphidae'
- 'Schizotherium belongs to Chalicotheriidae'
- 'Schlosseria belongs to Lophialetidae'
- 'Schoenfelderpeton belongs to Branchiosauridae'
- 'Scincidae belongs to Leptoglossa'
- 'Scincosauridae belongs to Nectridea'
- 'Scincosaurus belongs to Scincosauridae'
- 'Sciuravidae belongs to Protrogomorpha'
- 'Sciuridae belongs to Sciuroidea'
- 'Sciurognathi belongs to Rodentia'
- 'Sciuroidea belongs to Sciuromorpha'
- 'Sciuromorpha belongs to Sciurognathi'
- 'Sclerocalyptus belongs to Glyptodontidae'
- 'Sclerocephalus belongs to Eryopidae'
- 'Scleromochlidae belongs to Thecodontia'
- 'Scleromochlus belongs to Scleromochlidae'
- 'Sclerosauridae belongs to Procolophonoidea'
- 'Sclerosaurus belongs to Sclerosauridae'
- 'Sclerothoracidae belongs to Rhinesuchoidea'
- 'Sclerothorax belongs to Sclerothoracidae'
- 'Scolecomorphidae belongs to Gymnophiona'
- 'Scolecophidia belongs to Serpentes'
- 'Scoliomus belongs to Pelycosauria'
- 'Scolopacidae belongs to Charadriiformes'
- 'Scopidae belongs to Ciconiiformes'
- 'Scopus belongs to Scopidae'
- 'Scotiophryne [misspelled as Scotiphryne] belongs to Discoglossidae'
- 'Scraeva belongs to Soricomorpha'
- 'Scutellosaurus belongs to Scelidosauridae'
- 'Scutemys belongs to Chelonia'
- 'Scutosaurus belongs to Pareiasauridae'
- 'Scylacognathus belongs to Gorgonopsidae'
- 'Scylacops belongs to Gorgonopsidae'
- 'Sebecidae belongs to Mesosuchia'
- 'Sebecus belongs to Sebecidae'
- 'Secernosaurus belongs to Hadrosauridae'
- 'Secodontosaurus belongs to Sphenacodontidae'
- 'Segisaurus belongs to Podokesauridae'
- 'Segnosauridae belongs to Archosauria'
- 'Segnosaurus belongs to Segnosauridae'
- 'Selenarctos belongs to Ursidae'
- 'Selenolophodon belongs to Tapiridae'
- 'Selenoportax belongs to Bovidae'
- 'Seleviniidae belongs to Gliroidea'
- 'Sellosaurus belongs to Anchisauridae'
- 'Semigenetta belongs to Viverridae'
- 'Serpentes belongs to Squamata'
- 'Serpianosaurus belongs to Pachypleuridae'
- 'Seudenius belongs to Notostylopidae'
- 'Seymouria belongs to Seymouriidae'
- 'Seymouriamorpha belongs to Anthracosauria'
- 'Seymouriidae belongs to Seymouriamorpha'
- 'Shamosuchus belongs to Paralligatoridae'
- 'Shanshanosauridae belongs to Theropoda'
- 'Shanshanosaurus belongs to Shanshanosauridae'
- 'Shansiodon belongs to Kannemeyeriidae'
- 'Shansisuchus belongs to Erythrosuchidae'
- 'Shantungosaurus belongs to Hadrosauridae'
- 'Shantungosuchus [misspelled as Shangtungosuchus] belongs to Atoposaurides'
- 'Sharamynodon belongs to Amynodontidae'
- 'Sharemys belongs to Emydidae'
- 'Shastasauridae belongs to Ichthyopterygia'
- 'Shastasaurus belongs to Shastasauridae'
- 'Shecenia belongs to Trigonostylopidae'
- 'Shelania belongs to Pipidae'
- 'Shensispira belongs to Bovidae'
- 'Shihtienfenia belongs to Pareiasauridae'
- 'Shonisaurus belongs to Shastasauridae'
- 'Shunosaurus belongs to Cetiosauridae'
- 'Shuotherium belongs to Trituberculata'
- 'Shweboemys belongs to Pelomedusidae'
- 'Sianodon belongs to Amynodontidae'
- 'Siderops belongs to Brachyopidae'
- 'Sigmala belongs to Sphenodontidae'
- 'Silphoictidoides belongs to Ictidosuchidae'
- 'Silvisaurus belongs to Nodosauridae'
- 'Simamphicyon belongs to Miacidae'
- 'Simatherium belongs to Bovidae'
- 'Simila belongs to Sphenodontidae'
- 'Simimeryx belongs to Hypertragulidae'
- 'Simimyidae belongs to Dipodoidea'
- 'Simoedosaurus belongs to Champsosauridae'
- 'Simolestes belongs to Pliosauridae'
- 'Simoliopheidae belongs to Simoliopheoidea'
- 'Simoliopheoidea belongs to Henophidia'
- 'Simoliophis belongs to Simoliopheidae'
- 'Simorhinella belongs to Simorhinellidae'
- 'Simorhinellidae belongs to Therocephalia'
- 'Simosaurinae was reranked as the family Simosauridae and belongs to Nothosauria'
- 'Simosaurus belongs to Simosaurinae'
- 'Simplaletes belongs to Lophialetidae'
- 'Simpsonodus belongs to Artiodactyla'
- 'Simpsonotus belongs to Henricosborniidae'
- 'Sinanas belongs to Anatidae'
- 'Sinaspideretes belongs to Trionychidae'
- 'Sinemys belongs to Sinemydidae'
- 'Sinictis belongs to Mustelidae'
- 'Sinobrachyops belongs to Brachyopidae'
- 'Sinochelys belongs to Dermatemydidae'
- 'Sinocoelurus belongs to Coeluridae'
- 'Sinoconodon belongs to Sinoconodontidae'
- 'Sinoconodontidae belongs to Triconodonta'
- 'Sinognathus belongs to Trirachodontidae'
- 'Sinohadrianus belongs to Testudinidae'
- 'Sinohippus belongs to Equidae'
- 'Sinohyus belongs to Suidae'
- 'Sinokannemeyeria belongs to Kannemeyeriidae'
- 'Sinopliosaurus belongs to Pliosauridae'
- 'Sinoreas belongs to Bovidae'
- 'Sinoryx belongs to Bovidae'
- 'Sinosaurus belongs to Poposauridae'
- 'Sinosinopa belongs to Micropternodontidae'
- 'Sinostylops belongs to Arctostylopidae'
- 'Sinotragus belongs to Bovidae'
- 'Siphonocetus belongs to Cetotheriidae'
- 'Siren belongs to Sirenidae'
- 'Sirenavus belongs to Dugongidae'
- 'Sirenia belongs to Eutheria'
- 'Sirenidae belongs to Salamandroidea'
- 'Sitta belongs to Sittidae'
- 'Sittidae belongs to Passeriformes'
- 'Sivacapra belongs to Bovidae'
- 'Sivaceros belongs to Bovidae'
- 'Sivachoerus belongs to Suidae'
- 'Sivacobus belongs to Bovidae'
- 'Sivadenota belongs to Bovidae'
- 'Sivaelurus belongs to Felidae'
- 'Sivafelis belongs to Felidae'
- 'Sivahyus belongs to Suidae'
- 'Sivalictis belongs to Mustelidae'
- 'Sivanasua belongs to Procyonidae'
- 'Sivaonyx belongs to Mustelidae'
- 'Sivaportax belongs to Bovidae'
- 'Sivasmilus belongs to Felidae'
- 'Sivatherium belongs to Giraffidae'
- 'Sivatitanops belongs to Brontotheridae'
- 'Sivatragus belongs to Bovidae'
- 'Sivoreas belongs to Bovidae'
- 'Sivoryx belongs to Bovidae'
- 'Siwalikosorex belongs to Soricidae'
- 'Slaugenhopia belongs to Trimerorhachidae'
- 'Smilodontidion belongs to Felidae'
- 'Sminthosinis belongs to Mustelidae'
- 'Soergelia belongs to Bovidae'
- 'Sokotochelys belongs to Pelomedusidae'
- 'Sokotosuchus belongs to Dyrosauridae'
- 'Solenodonsauridae belongs to Anthracosauria'
- 'Solenodonsaurus belongs to Solenodonsauridae'
- 'Solnhofia belongs to Chelonia'
- 'Sonogrus belongs to Eogruidae'
- 'Sordes belongs to Rhamphorhynchidae'
- 'Sorex belongs to Soricidae'
- 'Soricella belongs to Soricidae'
- 'Soricidae belongs to Soricomorpha'
- 'Soriculus belongs to Soricidae'
- 'Spalacoidea belongs to Myomorpha'
- 'Sparassocynus belongs to Didelphidae'
- 'Sparodus belongs to Gymnarthridae'
- 'Spathicephalus belongs to Loxommatoidea'
- 'Spathorhynchus belongs to Rhineuridae'
- 'Sphaerodactylus belongs to Gekkonidae'
- 'Sphenacodon belongs to Sphenacodontidae'
- 'Sphenacodontidae belongs to Pelycosauria'
- 'Spheniscidae belongs to Sphenisciformes'
- 'Sphenisciformes belongs to Neognathae'
- 'Spheniscus belongs to Spheniscidae'
- 'Sphenocoelus belongs to Brontotheridae'
- 'Sphenodonta belongs to Lepidosauria'
- 'Sphenodontidae belongs to Sphenodonta'
- 'Sphenophalos belongs to Antilocapridae'
- 'Sphenosuchia belongs to Crocodylia'
- 'Sphenosuchidae belongs to Sphenosuchia'
- 'Sphenosuchus belongs to Sphenosuchidae'
- 'Sphenotherus belongs to Mylodontidae'
- 'Sphodrosaurus belongs to Procolophonidae'
- 'Spilogale belongs to Mustelidae'
- 'Spinosauridae belongs to Theropoda'
- 'Spinosaurus belongs to Spinosauridae'
- 'Spirocerus belongs to Bovidae'
- 'Spondylerpeton belongs to Archeriidae'
- 'Spondylolestes belongs to Procolophonidae'
- 'Spondylosoma belongs to Staurikosauridae'
- 'Sporadotragus belongs to Bovidae'
- 'Squalodelphis belongs to Ziphiidae'
- 'Squalodon belongs to Squalodontidae'
- 'Squalodontidae belongs to Odontoceti'
- 'Squamata belongs to Lepidosauria'
- 'Srinitium belongs to Soricidae'
- 'Stagonolepididae [misspelled as Stagnolepididae] belongs to Aetosauria'
- 'Stagonolepis belongs to Stagonolepididae'
- 'Stagonosuchus belongs to Rauisuchidae'
- 'Stahleckeria belongs to Kannemeyeriidae'
- 'Staurikosauria belongs to Saurischia'
- 'Staurikosauridae belongs to Staurikosauria'
- 'Staurikosaurus belongs to Staurikosauridae'
- 'Staurotypus belongs to Kinosternidae'
- 'Steatornithidae belongs to Caprimulgiformes'
- 'Stegoceras belongs to Pachycephalosauridae'
- 'Stegodibelodon belongs to Elephantidae'
- 'Stegodon belongs to Stegodontidae'
- 'Stegodontidae belongs to Mammutoidea'
- 'Stegolophodon belongs to Stegodontidae'
- 'Stegomastodon belongs to Gomphotheriidae'
- 'Stegomosuchus belongs to Protosuchidae'
- 'Stegomus belongs to Stagnolepididae'
- 'Stegops belongs to Zatracheidae'
- 'Stegosauria belongs to Ornithischia'
- 'Stegosauridae belongs to Stegosauria'
- 'Stegosaurides belongs to Ankylosauridae'
- 'Stegosaurus belongs to Stegosauridae'
- 'Stegotetrabelodon belongs to Gomphotheriidae'
- 'Stegotheriopsis belongs to Dasypodidae'
- 'Stegotherium belongs to Dasypodidae'
- 'Stellio belongs to Agamidae'
- 'Stenanagale belongs to Anagalidae'
- 'Stenaulorhynchus belongs to Rhynchosauridae'
- 'Steneosaurus belongs to Teleosauridae'
- 'Steno belongs to Delphinidae'
- 'Steno (Stenella) was reranked as Stenella and belongs to Delphinidae'
- 'Stenogale belongs to Mustelidae'
- 'Stenomylus belongs to Camelidae'
- 'Stenonychosaurus belongs to Saurornithoididae'
- 'Stenopelix belongs to Ceratopsia'
- 'Stenoplesictis belongs to Viverridae'
- 'Stenopterygiidae belongs to Ichthyopterygia'
- 'Stenopterygius belongs to Stenopterygiidae'
- 'Stenotatus belongs to Dasypodidae'
- 'Stephanocemas belongs to Cervidae'
- 'Stephanorhinus belongs to Rhinocerotidae'
- 'Stephanospondylus belongs to Diadectidae'
- 'Steppesaurus belongs to Eotitanosuchia'
- 'Stercorariidae belongs to Charadriiformes'
- 'Stercorarius belongs to Stercorariidae'
- 'Stereodelphis belongs to Delphinidae'
- 'Stereogenys belongs to Pelomedusidae'
- 'Stereognathus belongs to Tritylodontidae'
- 'Stereophallodon belongs to Ophiacodontidae'
- 'Stereorhachis belongs to Ophiacodontidae'
- 'Stereosternum belongs to Mesosauridae'
- 'Stereotoxodon belongs to Toxodontidae'
- 'Sternbergia belongs to Didelphidae'
- 'Steropodon belongs to Ornithorhynchidae'
- 'Sthenarosaurus belongs to Plesiosauria'
- 'Sthenictis belongs to Mustelidae'
- 'Sthenodectes belongs to Brontotheridae'
- 'Stibarus belongs to Leptochoerinae'
- 'Stilhippus belongs to Notohippidae'
- 'Stilosoma belongs to Colubridae'
- 'Stipanicicia belongs to Mustelidae'
- 'Stockoceros belongs to Antilocapridae'
- 'Stokesosaurus belongs to Theropoda'
- 'Stomatosuchidae belongs to Eusuchia'
- 'Stomatosuchus belongs to Stomatosuchidae'
- 'Storthyggognathus [misspelled as Storthyggnathus] belongs to Pristerodontidae'
- 'Stoschiosaurus belongs to Trematosauridae'
- 'Strepsiportax belongs to Bovidae'
- 'Stretosaurus belongs to Pliosauridae'
- 'Strigidae belongs to Strigiformes'
- 'Strigiformes belongs to Neognathae'
- 'Strigosuchus belongs to Thecodontia'
- 'Strix belongs to Strigidae'
- 'Strogulognathus belongs to Bovidae'
- 'Stromeriella belongs to Ursidae'
- 'Strongylokrotaphus belongs to Pliosauridae'
- 'Struthio belongs to Struthionidae'
- 'Struthiocephaloides belongs to Tapinocephalidae'
- 'Struthiocephalus belongs to Tapinocephalidae'
- 'Struthiomimus belongs to Ornithomimidae'
- 'Struthionidae belongs to Struthioniformes'
- 'Struthioniformes belongs to Palaeognathae'
- 'Struthionops belongs to Tapinocephalidae'
- 'Struthiosaurus belongs to Nodosauridae'
- 'Stupendemys belongs to Pelomedusidae'
- 'Stygimoloch belongs to Pachycephalosauridae'
- 'Stygiochelys [misspelled as Stygichelys] belongs to Baenidae'
- 'Stylemys belongs to Testudinidae'
- 'Stylinodontidae belongs to Taeniodonta'
- 'Stylochoerus belongs to Suidae'
- 'Stylohipparion belongs to Equidae'
- 'Styracocephalus belongs to Tapinocephalidae'
- 'Styracosaurus belongs to Ceratopsidae'
- 'Styxosaurus belongs to Elasmosauridae'
- 'Subhyracodon belongs to Rhinocerotidae'
- 'Suchosaurus belongs to Pholidosauridae'
- 'Suidae belongs to Suoidea'
- 'Suina belongs to Artiodactyla'
- 'Sula belongs to Sulidae'
- 'Sula (Microsula) was reranked as Microsula and belongs to Sulidae'
- 'Sulae belongs to Pelecaniformes'
- 'Sulakocetus belongs to Squalodontidae'
- 'Sulidae belongs to Sulae'
- 'Suncus belongs to Soricidae'
- 'Sunkahetanka belongs to Canidae'
- 'Sunosuchus belongs to Goniophididae'
- 'Suoidea belongs to Suina'
- 'Suricata belongs to Viverridae'
- 'Sus belongs to Suidae'
- 'Swainiguanoides belongs to Iguanidae'
- 'Sycosaurus belongs to Gorgonopsidae'
- 'Syllomus belongs to Cheloniidae'
- 'Sylviornis belongs to Megapodidae'
- 'Sylvisorex belongs to Soricidae'
- 'Symmetrodonta belongs to Trituberculata'
- 'Symphysorrhachis belongs to Hyracodontidae'
- 'Symplectocyon belongs to Amphicyonidae'
- 'Symptosuchus belongs to Goniophididae'
- 'Synapsida belongs to Reptilia'
- 'Synastrapotherium belongs to Astrapotheriidae' according to C. Paula Couto 1976
- 'Syncerus belongs to Bovidae'
- 'Synconolophus belongs to Gomphotheriidae'
- 'Syndyoceras belongs to Protoceratidae'
- 'Syndyodosuchus belongs to Eryopidae'
- 'Synoplotherium belongs to Mesonychidae'
- 'Synostocephalus belongs to Pristerodontidae'
- 'Syntarsus belongs to Podokesauridae'
- 'Synthetoceras belongs to Protoceratidae'
- 'Synthetoceras (Prosynthetoceras) was reranked as Prosynthetoceras and belongs to Protoceratidae'
- 'Syodon belongs to Brithopodidae'
- 'Syrrhaptes belongs to Pteroclidae'
- 'Syrrhopus belongs to Leptodactylidae'
- 'Syrtosmilus belongs to Felidae'
- 'Szechuanosaurus belongs to Megalosaurinidae'
- 'Tachyglossidae belongs to Monotremata'
- 'Tachyglossus belongs to Tachyglossidae'
- 'Tadorna belongs to Anatidae'
- 'Taeniodonta belongs to Eutheria'
- 'Talarurus belongs to Ankylosauridae'
- 'Talpa belongs to Talpidae'
- 'Talpavoides belongs to Erinaceomorpha'
- 'Talpavus belongs to Erinaceomorpha'
- 'Talpini was reranked as the family Talpidae and belongs to Soricomorpha'
- 'Tangaroasaurus belongs to Squalodontidae'
- 'Tangasauridae belongs to Eosuchia'
- 'Tangasaurus belongs to Tangasauridae'
- 'Tanius belongs to Hadrosauridae'
- 'Taniwhasaurus belongs to Mosasauridae'
- 'Tanymykter belongs to Camelidae'
- 'Tanystropheidae belongs to Protorosauria'
- 'Tanystropheus belongs to Tanystropheidae'
- 'Tanytrachelos belongs to Tanystropheidae'
- 'Taognathus belongs to Dicynodontia'
- 'Taperidae is corrected as Tapiridae and belongs to Tapiroidea'
- 'Taphrosphys belongs to Pelomedusidae'
- 'Tapinocephalia belongs to Dinocephalia'
- 'Tapinocephalidae belongs to Tapinocephalia'
- 'Tapinocephalus belongs to Tapinocephalidae'
- 'Tapiravus belongs to Tapiridae'
- 'Tapiroidea belongs to Ceratomorpha'
- 'Tapirus belongs to Tapiridae'
- 'Tapochoerus belongs to Antiacodontinae'
- 'Tarchia belongs to Ankylosauridae'
- 'Tarentola belongs to Gekkonidae'
- 'Taricha belongs to Salamandridae'
- 'Tarsiidae belongs to Tarsiiformes'
- 'Tarsiiformes belongs to Prosimii'
- 'Tasmaniosaurus belongs to Proterosuchidae'
- 'Taucanamo belongs to Tayassuidae'
- 'Taurosaurus belongs to Tapinocephalidae'
- 'Tawasaurus belongs to Fabrosauridae'
- 'Taxidea belongs to Mustelidae'
- 'Taxodon belongs to Mustelidae'
- 'Tayassu belongs to Tayassuidae'
- 'Tayassuidae belongs to Suoidea'
- 'Tchoiria [misspelled as Tchoira] belongs to Champsosauridae'
- 'Technosaurus belongs to Fabrosauridae'
- 'Teiidae belongs to Leptoglossa'
- 'Teilhardia belongs to Amynodontidae'
- 'Teinurosaurus belongs to Coeluridae'
- 'Telecrex belongs to Numididae'
- 'Teleidosaurus belongs to Metriorhynchidae'
- 'Teleoceras belongs to Rhinocerotidae'
- 'Teleocrater belongs to Thecodontia'
- 'Teleolophus belongs to Deperetellidae'
- 'Teleorhinus belongs to Pholidosauridae'
- 'Teleosauridae belongs to Mesosuchia'
- 'Teleosaurus belongs to Teleosauridae'
- 'Telmasaurus belongs to Varanidae'
- 'Telmatherium belongs to Brontotheridae'
- 'Telmatodon belongs to Anthracotheriidae'
- 'Telmatornis belongs to Presbyornithidae'
- 'Telmatornis belongs to Graculavidae'
- 'Temnoclemmys belongs to Emydidae'
- 'Temnocyon belongs to Amphicyonidae'
- 'Temnodontosaurus belongs to Leptopterygiidae'
- 'Temnospondyli was reranked as a order and belongs to Labyrinthodontia'
- 'Tenontosaurus belongs to Hypsilophodontidae'
- 'Tenrecidae belongs to Zalambdodonta'
- 'Teratornis belongs to Teratornithidae'
- 'Teratornithidae belongs to Ciconiiformes'
- 'Teratosaurus belongs to Poposauridae'
- 'Terrapene belongs to Emydidae'
- 'Terrestrisuchus belongs to Saltoposuchidae'
- 'Tersomius belongs to Dissorophidae'
- 'Tertrema belongs to Trematosauridae'
- 'Tertremoides belongs to Trematosauridae'
- 'Tesselodon belongs to Rhinocerotidae'
- 'Testudinata was reranked as a subclass and belongs to Reptilia'
- 'Testudinidae belongs to Testudinoidea'
- 'Testudinoidea belongs to Cryptodira'
- 'Testudo belongs to Testudinidae'
- 'Tetraceratops belongs to Pelycosauria'
- 'Tetracerus belongs to Bovidae'
- 'Tetraconodon belongs to Suidae'
- 'Tetracynodon belongs to Scaloposauridae'
- 'Tetragonias belongs to Kannemeyeriidae'
- 'Tetragonostylops belongs to Trigonostylopidae'
- 'Tetralophodon belongs to Gomphotheriidae'
- 'Tetrameryx belongs to Antilocapridae'
- 'Tetrapassalus belongs to Epoicotheriidae'
- 'Teutomanis belongs to Manidae'
- 'Texasophis belongs to Colubridae'
- 'Texoceros belongs to Antilocapridae'
- 'Texodon belongs to Artiodactyla'
- 'Thadanius belongs to Adianthidae'
- 'Thadeosaurus belongs to Tangasauridae'
- 'Thalassemyidae is a misspelling of Thalassemydidae'
- 'Thalassemys belongs to Thalassemyidae'
- 'Thalassictis belongs to Hyaenidae'
- 'Thalassocetus belongs to Physeteridae'
- 'Thalassoleon belongs to Otariidae'
- 'Thalassomedon belongs to Elasmosauridae'
- 'Thalattosauria belongs to Diapsida'
- 'Thalattosaurus belongs to Thalattosauridae'
- 'Thalattosiren belongs to Dugongidae'
- 'Thaleroceros belongs to Bovidae'
- 'Thaumastocyon belongs to Ursidae'
- 'Thaumastognathus belongs to Anthracotheriidae'
- 'Theatonius belongs to Ranidae'
- 'Thecadactylus belongs to Gekkonidae'
- 'Thecodontia belongs to Archosauria'
- 'Thelegnathus belongs to Procolophonidae'
- 'Theosodon belongs to Macraucheniidae'
- 'Therapsida was reranked as a order and belongs to Synapsida'
- 'Theria belongs to Mammalia'
- 'Theridomyidae belongs to Theridomyoidea'
- 'Theridomyoidea belongs to Sciurognathi'
- 'Theriodictis belongs to Canidae'
- 'Theriognathus belongs to Whaitsiidae'
- 'Therioherpeton belongs to Chiniquodontidae'
- 'Theriosuchus belongs to Atoposaurides'
- 'Therizinosauridae belongs to Theropoda'
- 'Therizinosaurus belongs to Therizinosauridae'
- 'Therocephalia was reranked as a suborder and belongs to Therapsida'
- 'Theropoda belongs to Saurischia'
- 'Thescelosaurus belongs to Hypsilophodontidae'
- 'Thescelus belongs to Neurankylidae'
- 'Thinobadistes belongs to Mylodontidae'
- 'Thinochelys belongs to Toxochelyidae'
- 'Thinocoridae belongs to Charadriiformes'
- 'Thinohyus belongs to Tayassuidae'
- 'Thinosaurus is a subjective synonym of Saniwa'
- 'Thoatherium belongs to Proterotheriidae'
- 'Thomashuxleya belongs to Isotemnidae'
- 'Thoosuchus belongs to Benthosuchidae'
- 'Thoraciliacus belongs to Pipidae'
- 'Thoracosaurus belongs to Crocodylidae'
- 'Thrausmosaurus belongs to Pelycosauria'
- 'Thrinaxodon belongs to Galesauridae'
- 'Thryonomyidae belongs to Thryonomyoidea'
- 'Thryonomyoidea belongs to Phiomorpha'
- 'Thylamys belongs to Didelphidae'
- 'Thylatheridium belongs to Didelphidae'
- 'Thylophorops belongs to Didelphidae'
- 'Thyrohyrax belongs to Pliohyracidae'
- 'Tichvinskia belongs to Procolophonidae'
- 'Ticinosuchus belongs to Rauisuchidae'
- 'Tienfuchelys belongs to Plesiochelyidae'
- 'Tienosuchus belongs to Crocodylidae'
- 'Tienshanilophus belongs to Phenacolophidae'
- 'Tienshanosaurus belongs to Euhelopodidae'
- 'Tilemsisuchus belongs to Dyrosauridae'
- 'Tillodon belongs to Esthonychidae'
- 'Tillodontia belongs to Eutheria'
- 'Tinamidae belongs to Tinamiformes'
- 'Tinamiformes belongs to Palaeognathae'
- 'Tinamus belongs to Tinamidae'
- 'Tinosaurus belongs to Agamidae'
- 'Tinuviel belongs to Periptychidae'
- 'Tiphyocetus belongs to Cetotheriidae'
- 'Tisisthenes belongs to Mustelidae'
- 'Titanis belongs to Phorusrhacidae'
- 'Titanodectes belongs to Brontotheridae'
- 'Titanogomphodon belongs to Diademodontidae'
- 'Titanohyrax belongs to Pliohyracidae'
- 'Titanoideidae belongs to Pantodonta'
- 'Titanoides belongs to Titanoideidae'
- 'Titanophoneus belongs to Brithopodidae'
- 'Titanopteryx belongs to Ornithocheiridae'
- 'Titanornis belongs to Phorusrhacidae'
- 'Titanosauridae belongs to Sauropoda'
- 'Titanosaurus belongs to Titanosauridae'
- 'Titanosuchia belongs to Dinocephalia'
- 'Titanosuchidae belongs to Titanosuchia'
- 'Titanosuchus belongs to Titanosuchidae'
- 'Titanotylopus belongs to Camelidae'
- 'Todidae belongs to Halcyones'
- 'Tokosauridae belongs to Anthracosauria'
- 'Tokosaurus belongs to Tokosauridae'
- 'Tolmodus [misspelled as Tomodus] belongs to Phorusrhacidae'
- 'Tolypeutes belongs to Dasypodidae'
- 'Tomarctus belongs to Canidae'
- 'Tomistoma belongs to Crocodylidae'
- 'Tonsala belongs to Plotopteridae'
- 'Toretocnemus belongs to Shastasauridae'
- 'Toribos belongs to Bovidae'
- 'Tornieria belongs to Titanosauridae'
- 'Toromeryx belongs to Protoceratidae'
- 'Torosaurus belongs to Ceratopsidae'
- 'Torticornis belongs to Bovidae'
- 'Torvosaurus belongs to Megalosauridae'
- 'Tossunnoria belongs to Bovidae'
- 'Totanus belongs to Scolopacidae'
- 'Toxochelyidae belongs to Chelonioidea'
- 'Toxochelys belongs to Toxochelyidae'
- 'Toxodon belongs to Toxodontidae'
- 'Toxodontia belongs to Notoungulata'
- 'Toxodontidae belongs to Toxodontia'
- 'Toxolophosaurus belongs to Sphenodontidae'
- 'Trachelosaurus belongs to Protorosauria'
- 'Trachyaspis belongs to Dermatemydidae'
- 'Trachycalyptus belongs to Glyptodontidae'
- 'Trachydosaurus belongs to Scincidae'
- 'Trachystegos belongs to Pantylidae'
- 'Trachytherus belongs to Mesotheriidae'
- 'Tragelaphus belongs to Bovidae'
- 'Tragocerus belongs to Bovidae'
- 'Tragoportax belongs to Bovidae'
- 'Tragoreas belongs to Bovidae'
- 'Tragospira belongs to Bovidae'
- 'Tragulidae belongs to Traguloidea'
- 'Tragulohyus belongs to Artiodactyla'
- 'Traguloidea belongs to Ruminantia'
- 'Tragulus belongs to Tragulidae'
- 'Transpithecus belongs to Interatheriidae'
- 'Traversodon belongs to Traversodontidae'
- 'Traversodontidae belongs to Tritylodontoidea'
- 'Tregophis belongs to Boidae'
- 'Tregosorex belongs to Soricidae'
- 'Tremacyllus belongs to Hegetotheriidae'
- 'Tremarctos belongs to Ursidae'
- 'Trematochampsa belongs to Trematochampsidae'
- 'Trematochampsidae belongs to Mesosuchia'
- 'Trematops belongs to Trematopsidae'
- 'Trematopsidae belongs to Eryopoidea'
- 'Trematosauridae belongs to Trematosauroidea'
- 'Trematosauroidea belongs to Temnospondyli'
- 'Trematosaurus belongs to Trematosauridae'
- 'Trematosuchus belongs to Trematosauridae'
- 'Tretosphys belongs to Delphinidae'
- 'Tretosternon belongs to Dermatemydidae'
- 'Triadobatrachus belongs to Protobatrachidae'
- 'Trialestes belongs to Trialestidae'
- 'Trialestia belongs to Crocodylia'
- 'Trialestidae belongs to Trialestia'
- 'Triassurus belongs to Urodeles'
- 'Tribolodon belongs to Galesauridae'
- 'Triceratops belongs to Ceratopsidae'
- 'Triceromeryx belongs to Giraffidae'
- 'Trichasaurus belongs to Pelycosauria'
- 'Tricleidus belongs to Elasmosauridae'
- 'Tricoelodus belongs to Adianthidae'
- 'Triconodon belongs to Triconodontidae'
- 'Triconodonta belongs to Prototheria'
- 'Triconodontidae belongs to Triconodonta'
- 'Tricuspes belongs to Chiniquodontoidea'
- 'Tricuspiodontidae belongs to Condylarthra'
- 'Tricuspisaurus belongs to Trilophosauridae'
- 'Trigodon belongs to Toxodontidae'
- 'Trigonias belongs to Rhinocerotidae'
- 'Trigonictis belongs to Mustelidae'
- 'Trigonostylopidae belongs to Astrapotheria'
- 'Trigonostylops belongs to Trigonostylopidae'
- 'Trihecaton belongs to Trihecatontidae'
- 'Trihecatontidae belongs to Tuditanomorpha'
- 'Triisodon belongs to Mesonychia'
- 'Trilophosauria belongs to Archosauromorpha'
- 'Trilophosauridae belongs to Trilophosauria'
- 'Trilophosaurus belongs to Trilophosauridae'
- 'Trimerorhachidae belongs to Trimerorhachoidea'
- 'Trimerorhachis belongs to Trimerorhachidae'
- 'Trimerorhachoidea belongs to Temnospondyli'
- 'Trimerostephanos belongs to Isotemnidae'
- 'Trimucrodon belongs to Fabrosauridae'
- 'Trimylus belongs to Soricidae'
- 'Trinacromerum belongs to Pliosauridae'
- 'Trinitichelys belongs to Baenidae'
- 'Trionychidae belongs to Trionychoidea'
- 'Trionychoidea belongs to Cryptodira'
- 'Trionyx belongs to Trionychidae'
- 'Trioracodon belongs to Triconodontidae'
- 'Triplopus belongs to Hyracodontidae'
- 'Trirachodon belongs to Trirachodontidae'
- 'Trirachodontidae belongs to Tritylodontoidea'
- 'Tritheledon belongs to Tritheledontidae'
- 'Tritheledontidae belongs to Chiniquodontoidea'
- 'Trituberculata belongs to Theria'
- 'Triturus belongs to Salamandridae'
- 'Tritylodon belongs to Tritylodontidae'
- 'Tritylodontidae belongs to Tritylodontoidea'
- 'Tritylodontoidea belongs to Eucynodontia'
- 'Trocharion belongs to Mustelidae'
- 'Trochictis belongs to Mustelidae'
- 'Trochili belongs to Apodiformes'
- 'Trochilidae belongs to Trochili'
- 'Trochotherium belongs to Mustelidae'
- 'Trogon belongs to Trogonidae'
- 'Trogonidae belongs to Halcyones'
- 'Trogosus belongs to Esthonychidae'
- 'Troodon belongs to Saurornithoididae'
- 'Tropidemys belongs to Thalassemyidae'
- 'Trucheosaurus belongs to Brachyopidae'
- 'Tsaganius belongs to Palaeoryctidae'
- 'Tsaganomyinae belongs to Bathygeromorpha'
- 'Tsaidamotherium belongs to Bovidae'
- 'Tsamnichoria belongs to Oldfieldthomasiidae'
- 'Tsaotanemys belongs to Dermatemydidae'
- 'Tseajaia belongs to Tseajaiidae'
- 'Tseajaiidae belongs to Anthracosauria'
- 'Tsintaosaurus belongs to Hadrosauridae'
- 'Tubulidentata belongs to Eutheria'
- 'Tubulodon belongs to Palaeanodonta'
- 'Tuditanidae belongs to Tuditanomorpha'
- 'Tuditanomorpha belongs to Microsauria'
- 'Tuditanus belongs to Tuditanidae'
- 'Tugulusaurus belongs to Ornithomimidae'
- 'Tulerpeton belongs to Proterogyrinidae'
- 'Tungurictis belongs to Viverridae'
- 'Tuojiangosaurus belongs to Stegosauridae'
- 'Tupaiidae belongs to Scandentia'
- 'Tupaiodon belongs to Erinaceomorpha'
- 'Tupilakosaurus belongs to Brachyopidae'
- 'Tupinambis belongs to Teiidae'
- 'Turnicidae belongs to Galliformes'
- 'Turnix belongs to Turnicidae'
- 'Tursiops belongs to Delphinidae'
- 'Tylocephale belongs to Pachycephalosauridae'
- 'Tylocephalonyx belongs to Chalicotheriidae'
- 'Tylopoda was reranked as a suborder and belongs to Artiodactyla'
- 'Tylosaurus belongs to Mosasauridae'
- 'Tylototriton belongs to Salamandridae'
- 'Tympanonesiotes belongs to Pelagornithidae'
- 'Typhlonectidae belongs to Gymnophiona'
- 'Typhlopidae belongs to Scolecophidia'
- 'Typhlops belongs to Typhlopidae'
- 'Typlothorax belongs to Stagnolepididae'
- 'Typothericulus belongs to Mesotheriidae'
- 'Typotheriopsis belongs to Mesotheriidae'
- 'Typotheroidea belongs to Notoungulata'
- 'Tyrannosauridae belongs to Theropoda'
- 'Tyrannosaurus belongs to Tyrannosauridae'
- 'Tyto belongs to Tytonidae'
- 'Tytonidae belongs to Strigiformes'
- 'Ugandax belongs to Bovidae'
- 'Uintatheriidae belongs to Dinocerata'
- 'Uintornis belongs to Primobucconidae'
- 'Ulausuodon belongs to Anthracotheriidae'
- 'Ultrapithecus belongs to Oldfieldthomasiidae'
- 'Upupa belongs to Upupidae'
- 'Upupidae belongs to Bucerotiformes'
- 'Uralokannemeyeria belongs to Kannemeyeriidae'
- 'Uranocentrodon belongs to Rhinesuchidae'
- 'Urmiatherium belongs to Bovidae'
- 'Urocordylidae belongs to Nectridea'
- 'Urocordylus belongs to Urocordylidae'
- 'Urocyon belongs to Canidae'
- 'Urodeles was reranked as the order Urodela and belongs to Lepospondyli'
- 'Uromastyx belongs to Agamidae'
- 'Urosaurus belongs to Iguanidae'
- 'Urotherium belongs to Glyptodontidae'
- 'Urotrichus belongs to Talpidae'
- 'Ursavus belongs to Ursidae'
- 'Ursidae belongs to Arctoidea'
- 'Ursulus belongs to Ursidae'
- 'Ursus belongs to Ursidae'
- 'Urtinotherium belongs to Hyracodontidae'
- 'Uruguaysuchidae belongs to Mesosuchia'
- 'Uruguaysuchus belongs to Uruguaysuchidae'
- 'Urumgia belongs to Discosauriscidae'
- 'Uta belongs to Iguanidae'
- 'Utaetus belongs to Dasypodidae'
- 'Utatsusauridae belongs to Ichthyopterygia'
- 'Utegenia belongs to Discosauriscidae'
- 'Utemylus belongs to Hyopsodontidae'
- 'Valdosaurus belongs to Dryosauridae'
- 'Valenictus [misspelled as Valenictis] belongs to Odobaenidae'
- 'Valenticarbo belongs to Phalacrocoracidae'
- 'Varanidae belongs to Varanoidea'
- 'Varanodon belongs to Varanopseidae'
- 'Varanoidea belongs to Diploglossa'
- 'Varanoops is corrected as Varanops and belongs to Varanopseidae'
- 'Varanopsidae is corrected as Varanopseidae and belongs to Pelycosauria'
- 'Varanosaurus belongs to Pelycosauria'
- 'Varanus belongs to Varanidae'
- 'Variodens belongs to Trilophosauridae'
- 'Vassallia belongs to Dasypodidae'
- 'Vectisaurus belongs to Iguanodontidae'
- 'Vectisuchus belongs to Goniophididae'
- 'Velocipes belongs to Podokesauridae'
- 'Velociraptor belongs to Dromaeosauridae'
- 'Venaticosuchus belongs to Ornithosuchidae'
- 'Venjukoviamorpha belongs to Dicynodontia'
- 'Venjukoviidae is corrected as Venyukoviidae and belongs to Venjukoviamorpha'
- 'Venyukovia belongs to Venjukoviidae'
- 'Veragromovia belongs to Tapiroidea'
- 'Vermilingua belongs to Pilosa'
- 'Vespertilionidae belongs to Vespertilionoidea'
- 'Vespertilionoidea belongs to Microchiroptera'
- 'Victorlemoineia belongs to Macraucheniidae'
- 'Vicugna belongs to Camelidae'
- 'Vieraella belongs to Ascaphidae'
- 'Vinayakia belongs to Felidae'
- 'Vinceria belongs to Kannemeyeriidae'
- 'Vipera belongs to Viperidae'
- 'Viperidae belongs to Colubroidea'
- 'Viretailurus belongs to Felidae'
- 'Vishnucobus belongs to Bovidae'
- 'Vishnucyon belongs to Amphicyonidae'
- 'Vishnufelis belongs to Felidae'
- 'Vishnuictis belongs to Viverridae'
- 'Vishnuonyx belongs to Mustelidae'
- 'Vishnutherium belongs to Giraffidae'
- 'Vitalia belongs to Procolophonidae'
- 'Viverra belongs to Viverridae'
- 'Viverricula belongs to Viverridae'
- 'Viverridae belongs to Aeluroidea'
- 'Vjushkovia belongs to Erythrosuchidae'
- 'Vjushkovisaurus belongs to Rauisuchidae'
- 'Volgasaurus belongs to Capitosauridae'
- 'Volgasuchus belongs to Capitosauridae'
- 'Volkheimeria belongs to Cetiosauridae'
- 'Vormela belongs to Mustelidae'
- 'Vulcanodon belongs to Melanorosauridae'
- 'Vulpes belongs to Canidae'
- 'Vultur belongs to Vulturidae'
- 'Vulturidae belongs to Ciconiiformes'
- 'Wadiasaurus belongs to Kannemeyeriidae'
- 'Wainka belongs to Proterotheriidae'
- 'Walangania belongs to Gelocidae'
- 'Walgettosuchus belongs to Theropoda'
- 'Wannaganosuchus belongs to Alligatoridae'
- 'Wannanosaurus belongs to Homalocephalidae'
- 'Wanogale belongs to Anagalidae'
- 'Wantzosaurus belongs to Trematosauridae'
- 'Watongia belongs to Eotitanosuchia'
- 'Wawelia belongs to Ceratophrynidae'
- 'Weigeltisaurus belongs to Coelurosauravidae'
- 'Wellesaurus belongs to Capitosauridae'
- 'Wetlugasaurus belongs to Capitosauridae'
- 'Whaitsiidae belongs to Therocephalia'
- 'Wilsonosorex belongs to Soricidae'
- 'Wimanornis belongs to Spheniscidae'
- 'Wolterstorffiella belongs to Dicamptodontidae'
- 'Wonambi belongs to Boidae'
- 'Woolungasaurus belongs to Elasmosauridae'
- 'Woutersophis belongs to Nigeropheidae'
- 'Wuerhosaurus belongs to Stegosauridae'
- 'Wyolestes belongs to Mesonychidae'
- 'Xantusia belongs to Xantusiidae'
- 'Xantusiidae belongs to Leptoglossa'
- 'Xenarthra was reranked as a order and belongs to Eutheria'
- 'Xenastrapotherium belongs to Astrapotheriidae'
- 'Xenibis belongs to Plataleidae'
- 'Xenictis belongs to Mustelidae'
- 'Xenochelys belongs to Kinosternidae'
- 'Xenocranium belongs to Epoicotheriidae'
- 'Xenohyus belongs to Suidae'
- 'Xenopus belongs to Pipidae'
- 'Xenorophus belongs to Odontoceti'
- 'Xenosauridae belongs to Anguoidea'
- 'Xenostephanus belongs to Oldfieldthomasiidae'
- 'Xenungulata belongs to Eutheria'
- 'Xesmodon belongs to Proterotheriidae'
- 'Xestops belongs to Anguidae'
- 'Xilousuchus belongs to Proterosuchidae'
- 'Xinjiangmeryx belongs to Leptomerycidae'
- 'Xiphodon belongs to Xiphodontidae'
- 'Xiphodontidae belongs to Tylopoda'
- 'Xotodon belongs to Toxodontidae'
- 'Xuanhanosaurus belongs to Megalosaurinidae'
- 'Xyrospondylus belongs to Pelycosauria'
- 'Yabeinosaurus belongs to Ardeosauridae'
- 'Yangchuanosaurus belongs to Allosauridae'
- 'Yantanglestes belongs to Mesonychidae'
- 'Yaverlandia belongs to Pachycephalosauridae'
- 'Yaxartemys belongs to Thalassemyidae'
- 'Youngina belongs to Younginidae'
- 'Younginidae belongs to Eosuchia'
- 'Youngornis belongs to Rallidae'
- 'Ysengrinia belongs to Amphicyonidae'
- 'Yuelophus belongs to Phenacolophidae'
- 'Yunnanodon belongs to Tritylodontidae'
- 'Yuodon belongs to Hyopsodontidae'
- 'Yuzhoupliosaurus belongs to Pliosauridae'
- 'Zaedyus belongs to Dasypodidae'
- 'Zaglossus belongs to Tachyglossidae'
- 'Zaisanamynodon belongs to Amynodontidae'
- 'Zalambdalestidae belongs to Eutheria'
- 'Zalambdodonta belongs to Insectivora'
- 'Zambiasaurus belongs to Kannemeyeriidae'
- 'Zangerlia belongs to Dermatemydidae'
- 'Zaphrissa belongs to Discoglossidae'
- 'Zapodidae belongs to Dipodoidea'
- 'Zarafa belongs to Giraffidae'
- 'Zarcasaurus belongs to Araeoscelidae'
- 'Zarhachis belongs to Platanistidae'
- 'Zatracheidae belongs to Eryopoidea'
- 'Zatrachys belongs to Zatracheidae'
- 'Zelceina belongs to Soricidae'
- 'Zeltornis belongs to Ardeidae'
- 'Zephyrosaurus belongs to Hypsilophodontidae'
- 'Zhongjianoletes belongs to Lophialetidae'
- 'Zhongyuanus belongs to Diatrymidae'
- 'Zhyraornis belongs to Zhyraornithidae'
- 'Zhyraornithidae belongs to Enantiornithiformes'
- 'Ziphiidae was reranked as the tribe Ziphiina and belongs to Odontoceti'
- 'Ziphiodelphis belongs to Rhabdosteidae'
- 'Ziphioides belongs to Ziphiidae'
- 'Ziphirostrum belongs to Ziphiidae'
- 'Zizhongosaurus belongs to Cetiosauridae'
- 'Zodiolestes belongs to Procyonidae'
- 'Zopherosuchus belongs to Estemmenosuchidae'
- 'Zorillodontops belongs to Scaloposauridae'
- 'Zygodactylidae belongs to Neognathae'
- 'Zygodactylus belongs to Zygodactylidae'
- 'Zygolestes belongs to Didelphidae'
- 'Zygorhiza belongs to Basilosauridae'
- 'Zygosaurus belongs to Dissorophidae'