List of prehistoric mammals Astrapotherium Amilnedwardsia Pascualihippus Pseudobrachytherium Proacrodon Toxodontia Typotheria Eoauchenia Patriarchus Teratopithecus Hegetotheriopsis Astrapotheria Comahuetherium Propachyrucos Micrauchenia Guilielmofloweria Coquenia Juchuysillu Saltaodus Fiandraia Megadolodus Thadanius Olisanophus Sparnotheriodon Sparnotheriodontidae South American native ungulates Eotypotherium Notohippus Adianthidae Requisia Anayatherium Eoastrapostylops Termastherium Notiolofos Eomorphippus Paranisolambda Henricosborniidae Maddenia Palyeidodon Pyrotheria Mesolicaphrium Bounodus Lamegoia Boleatherium N…

Notoetayoa Leontinia Paginula Uruguaytherium Archaeogaia Polymorphis Didolodontidae Liarthrus Medistylus Archaeohyrax Piauhytherium Prohegetotherium Allalmeia Morphippus Mesotheriidae Isotemnidae Peripantostylops Astrapothericulus Transpithecus Dolichostylodon Protolipterna Windhausenia Tremacyllus Picturotherium Santiagorothia Chasicotherium Martinmiguelia Archaeopithecidae Notonychops Phoenixauchenia Ultrapithecus Thoatheriopsis

Tricoelodus Notioprogonia Nonotherium Othnielmarshia Brachytherium Nanolophodon Mendozahippus Hegetotheriidae Oldfieldthomasiidae Prolicaphrium Hegetotherium Oldfieldthomasia Propyrotherium Wainka Epitherium Perutherium Xenungulata Gualta cuyana Eurygenium Adianthus Edvardotrouessartia Rhyphodon Proadinotherium Trigodon Archaeotypotherium Eohyrax Neolicaphrium Gyrinodon Taubatherium Proticia Homalodotherium Shecenia Proectocion Carolodarwinia Umayodus Villarroelia Scarrittia Pisanodon Punahyrax Pyrotheriidae Rhynchippus Scalabrinitherium Otrhonia Xotodon Paranauchenia Cramaucheniinae Archaeopithecus Interatheriidae Plesiotypoth