Taxonomic names from J. E. Gray 1821
- Agoutidae, family, J. E. Gray 1821 [Agoutidae]
- Alces, J. E. Gray 1821 [Cervidae]
- Amphibiae, order, J. E. Gray 1821 [Carnivora]
- Anoplotheriadae, family, J. E. Gray 1821 [Anoplotheriadae]
- Anoplotheriidae, family (J. E. Gray 1821) [Anoplotheriidae]
- Antilopidae, family, J. E. Gray 1821 [Antilopidae]
- Arctomydae, family, J. E. Gray 1821 [Arctomydae]
- Arvicolinae, subfamily (J. E. Gray 1821) [Cricetidae]
- Balaenidae, family (J. E. Gray 1821) [Balaenidae]
- Balanadae, family, J. E. Gray 1821 [Balanadae]
- Barbastella, J. E. Gray 1821 [Vespertilionidae]
- Bimanes, class, J. E. Gray 1821 [Bimanes]
- Bovidae, family, J. E. Gray 1821 [Bovidae]
- Bovoidea, superfamily, J. E. Gray 1821 [Mammalia]
- Bradypodidae, family (J. E. Gray 1821) [Bradypodidae]
- Callitrichidae, family, J. E. Gray 1821 [Cebidae]
- Camelidae, family, J. E. Gray 1821 [Camelidae]
- Capreolus, J. E. Gray 1821 [Cervidae]
- Capridae, family, J. E. Gray 1821 [Capridae]
- Caprinae, subfamily, J. E. Gray 1821 [Bovidae]
- Caprini, tribe, J. E. Gray 1821 [Bovidae]
- Carnivorae, order, J. E. Gray 1821 [Cetacea]
- Castoridae, family, J. E. Gray 1821 [Castoridae]
- Catoblepas, J. E. Gray 1821 [Bovidae]
- Caviidae, family, J. E. Gray 1821 [Caviidae]
- Cercopithecidae, family, J. E. Gray 1821 [Cercopithecidae]
- Cercopithecoidea, superfamily, J. E. Gray 1821 [Primates]
- Cervidae, family, J. E. Gray 1821 [Cervidae]
- Cheiromydae, family, J. E. Gray 1821 [Cheiromyidae]
- Cheiroptera, class (Blumenbach 1779) [Chiroptera]
- Dasypodidae, family (J. E. Gray 1821) [Dasypodidae]
- Delphinidae, family, J. E. Gray 1821 [Delphinidae]
- Didelphidae, family, J. E. Gray 1821 [Didelphimorphia]
- Digitigradae, order, J. E. Gray 1821 [Digitigradae]
- Dipsidae, family, J. E. Gray 1821 [Dipsidae]
- Dugongidae, family, J. E. Gray 1821 [Dugongidae]
- Dugonginae, subfamily, J. E. Gray 1821 [Dugongidae]
- Edentulae, order, J. E. Gray 1821 [Edentulae]
- Elephantidae, family, J. E. Gray 1821 [Elephantidae]
- Elephantoidea, superfamily, J. E. Gray 1821 [Proboscidea]
- Equidae, family, J. E. Gray 1821 [Equidae]
- Erinaceidae, family, Fischer von Waldheim 1817 [Erinaceidae]
- Felidae, family, J. E. Gray 1821 [Felidae]
- Ferae, order, J. E. Gray 1821 [Mammalia]
- Fructivorae, order, J. E. Gray 1821 [Fructivorae]
- Galeopithecidae, family, J. E. Gray 1821 [Galeopithecidae]
- Gampstonychae, order, J. E. Gray 1821 [Gampstonychae]
- Giraffidae, family, J. E. Gray 1821 [Giraffidae]
- Halamydae, family, J. E. Gray 1821 [Halamydae]
- Harpaladae, family, J. E. Gray 1821 [Harpaladae]
- Herbivorae, order, J. E. Gray 1821 [Sirenia]
- Heteronychae, order, J. E. Gray 1821 [Heteronychae]
- Hippopotamidae, family, J. E. Gray 1821 [Hippopotamidae]
- Hyaenidae, family, J. E. Gray 1821 [Hyaenidae]
- Hydrophorae, order, J. E. Gray 1821 [Hydrophorae]
- Hyracidae, family, J. E. Gray 1821 [Procaviidae]
- Hystricidae, family, Fischer de Waldheim 1817 [Hystricidae]
- Insectivorae, order, J. E. Gray 1821 [Insectivorae]
- Koladae, family, J. E. Gray 1821 [Koladae]
- Lemuridae, family, J. E. Gray 1821 [Lemuridae]
- Lorisidae, family (J. E. Gray 1821) [Lorisidae]
- Macropodidae, family (J. E. Gray 1821) [Macropodidae]
- Macropodinae, subfamily, J. E. Gray 1821 [Macropodidae]
- Macropodoidea, superfamily, J. E. Gray 1821 [Diprotodontia]
- Manatidae, family, J. E. Gray 1821 [Trichechidae]
- Manidae, family, J. E. Gray 1821 [Manidae]
- Mastodonadae, family, J. E. Gray 1821 [Mastodontidae]
- Megatheriadae, family, J. E. Gray 1821 [Megatheriadae]
- Megatheriidae, family (J. E. Gray 1821) [Megatheriidae]
- Monochenae, order, J. E. Gray 1821 [Monochenae]
- Monodontidae, family, J. E. Gray 1821 [Monodontidae]
- Moschidae, family, J. E. Gray 1821 [Moschidae]
- Mustelladae, family (G. Fischer 1817) [Mustelidae]
- Myaladae, family, J. E. Gray 1821 [Talpidae]
- Myosidae, family, J. E. Gray 1821 [Myosidae]
- Noctilionidae, family, J. E. Gray 1821 [Noctilionidae]
- Oligodontae, order, J. E. Gray 1821 [Oligodontae]
- Orycteropodidae, family, J. E. Gray 1821 [Orycteropodidae]
- Pedimanes, class, J. E. Gray 1821 [Pedimanes]
- Phalangistadae, family, J. E. Gray 1821 [Phalangistadae]
- Phalangistidae, family (J. E. Gray 1821) [Phalangeridae]
- Phascolomyidae, family (J. E. Gray 1821) [Phascolomyidae]
- Phocadae, family, J. E. Gray 1821 [Phocadae]
- Phocidae, family (J. E. Gray 1821) [Phocidae]
- Phocinae, subfamily, J. E. Gray 1821 [Phocidae]
- Phocini, tribe, J. E. Gray 1821 [Phocidae]
- Physalus, J. E. Gray 1821 [Balaenopteridae]
- Physeteridae, family, J. E. Gray 1821 [Physeteridae]
- Pithecidae, family, J. E. Gray 1821 [Pithecidae]
- Plantigradae, order, J. E. Gray 1821 [Plantigradae]
- Platyonychae, order, J. E. Gray 1821 [Platyonychae]
- Potoridae, family, J. E. Gray 1821 [Macropodidae]
- Potoroidae, family (J. E. Gray 1821) [Potoroidae]
- Pterophorae, order, J. E. Gray 1821 [Dermoptera]
- Pteropidae, family, J. E. Gray 1821 [Pteropidae]
- Quadripedes, class, J. E. Gray 1821 [Quadripedes]
- Quadrumanes, class (Blumenbach 1779) [Mammalia]
- Rhinocerotidae, family, J. E. Gray 1821 [Rhinocerotidae]
- Rhinocerotinae, subfamily, J. E. Gray 1821 [Rhinocerotidae]
- Rhinocerotoidea, superfamily, J. E. Gray 1821 [Perissodactyla]
- Rosores, order, J. E. Gray 1821 [Rosores]
- Ruminantes, order, J. E. Gray 1821 [Ruminantes]
- Sciuridae, family, J. E. Gray 1821 [Sciuridae]
- Spalacidae, family, J. E. Gray 1821 [Spalacidae]
- Suidae, family, J. E. Gray 1821 [Suidae]
- Suoidea, superfamily, J. E. Gray 1821 [Mammalia]
- Taperidae, family, J. E. Gray 1821 [Taperidae]
- Tapiridae, family (J. E. Gray 1821) [Tapiridae]
- Tarigradae, order (Latham and Davies 1795) [Mammalia]
- Tenrecidae, family, J. E. Gray 1821 [Tenrecidae]
- Tesserachenae, order, J. E. Gray 1821 [Tesserachenae]
- Trichechidae, family (J. E. Gray 1821) [Trichechidae]
- Trichenae, order, J. E. Gray 1821 [Trichenae]
- Unguiculata, subclass, J. E. Gray 1821 [Mammalia]
- Ungulata, subclass (Linnaeus 1766) [Mammalia]
- Ursinidae, family, J. E. Gray 1821 [Ursinidae]
- Vertebrosa, subkingdom, J. E. Gray 1821 [Vertebrosa]
- Vespertilionidae, family, J. E. Gray 1821 [Vespertilionidae]
- Viverridae, family, J. E. Gray 1821 [Viverridae]