Tachybaptus ruficollis (Pallas, 1764)
Tachyglossus aculeatus (Shaw, 1792)
Tamias sibiricus (Laxmann, 1769) – synoniem of Eutamias sibiricus (Laxmann, 1769)
Tamiasciurus hudsonicus (Erxleben, 1777)
Tanacetipathes barbadensis (Brook, 1889)
Tangara chilensis Vigors, 1832
Tapirus arvernensis Croizet & Jobert, 1828
Tapirus indicus Desmarest, 1819 – synoniem of Acrocodia indica (Desmarest, 1819)
Taraxacum officinale F.H.Wigg.
Tauraco hartlaubi (Fischer, GA & Reichenow, 1884)
Tauraco leucotis (Rüppell, 1835)
Tauraco persa (Linnaeus, 1758)
Taurhina polychrous Thomson, 1879
Taurotragus oryx (Pallas, 1766)
Teleopsis pallifacies Feijen & Feijen, 2011 – synoniem of Cyrtodiopsis dalmanni (Wiedemann, 1830)
Tenrec ecaudatus (Schreber, 1778)
Terminalia arjuna (Roxb.) Wight & Arn.
Terrapene carolina Linnaeus, 1758
Testudo sulcata Miller, 1779 – synoniem of Centrochelys sulcata (Miller, 1779)
Tetracanthagyna plagiata Waterhouse, 1877
Tetrao tetrix Linnaeus, 1758 – synoniem of Lyrurus tetrix (Linnaeus, 1758)
Tetrao urogallus Linnaeus, 1758
Tetrax tetrax (Linnaeus, 1758)
Tettigonia viridissima Linnaeus, 1758
Thamnophis sirtalis (Linnaeus, 1758)
Thanatophilus rugosus (Linnaeus, 1758)
Thatcheria mirabilis Angas, 1877
Therea petiveriana (Linnaeus, 1758)
Thoracosaurus macrorhynchus (de Blainville 1855)
Threskiornis aethiopicus (Latham, 1790)
Thunnus alalunga (Bonnaterre, 1788)
Thunnus thynnus (Linnaeus, 1758)
Thylacodes arenarius (Linnaeus, 1758)
Tibicen plebejus (Scopoli, 1763)
Tigrisoma lineatum (Boddaert, 1783)
Tirachoidea siamensis Hennemann & Conle, 2008
Tockus erythrorhynchus (Temminck, 1823)
Tomistoma schlegelii (Müller, 1838)
Tosena fasciata (Fabricius, 1787)
Toxodera denticulata (Serville, 1837)
Trachemys scripta troostii Holbrook, 1836
Trachinus draco Linnaeus, 1758
Trachyderes succinctus (Linnaeus, 1758)
Trachypithecus obscurus (Reid, 1837)
Tragelaphus strepsiceros (Pallas, 1766)
Tragopan blythii (Jerdon, 1870)
Tragopan satyra (Linnaeus, 1758)
Tragulus javanicus (Osbeck, 1765)
Trametes versicolor (L.) Pilát
Treron bicincta (Jerdon, 1840) – synoniem of Treron bicinctus (Jerdon, 1840)
Treron bicinctus (Jerdon, 1840)
Triceratops horridus Marsh 1889
Trichechus manatus Linnaeus, 1758
Trichius fasciatus (Linnaeus, 1758)
Trictenotoma westwoodi Deyrolle, 1875
Tridacna gigas (Linnaeus, 1758)
Tridonta borealis Schumacher, 1817 – synoniem of Astarte borealis (Schumacher, 1817)
Trigla lucerna Linnaeus, 1758 – synoniem of Chelidonichthys lucerna (Linnaeus, 1758)
Trigonostoma apertum (Beyrich,1856)
Trigonostoma geslini josephinae A.W. Janssen, 1984
Tringa totanus (Linnaeus, 1758)
Trioceros jacksonii (Boulenger, 1896)
Trogontherium cuvieri Fischer von Waldheim, 1809
Tubipora musica Linnaeus, 1758
Turbo marmoratus Linnaeus, 1758
Turnix suscitator (Gmelin, 1789)
Tursiops truncatus (Montagu, 1821)
Tympanuchus cupido (Linnaeus, 1758)
Typhis pungens (Solander in Brander,1766)