List of prehistoric mammals Astrapotherium Juchuysillu Saltaodus Teratopithecus Patriarchus Pascualihippus Amilnedwardsia Pseudobrachytherium Proacrodon Toxodontia Eoauchenia South American native ungulates Sparnotheriodontidae Guilielmofloweria Micrauchenia Hegetotheriopsis Typotheria Eotypotherium Propachyrucos Coniopternium Hegetotheriidae Notohippus Oldfieldthomasiidae Hegetotherium Mendozahippus Oldfieldthomasia Liarthrus Didolodontidae Coquenia Prohegetotherium Medistylus Paranisolambda Notiolofos Prolicaphrium Mesolicaphrium Pyrotheria Picturotherium Santiagorothia Nanolophodon Archaeohyrax Adianthidae Leontinia Archaeogaia Paginula Polymorphis Comahuetherium Lamegoia Eomorphippus Boleath…

herium Phoenixauchenia Thoatheriopsis Notioprogonia Olisanophus Eoastrapostylops Taubatherium Sparnotheriodon Termastherium Othnielmarshia Nonotherium Palyeidodon Isotemnidae Allalmeia Morphippus Peripantostylops Mesotheriidae Martinmiguelia Bounodus Notonychops Uruguaytherium Fiandraia Tricoelodus Ultrapithecus Astrapotheria Maddenia Pyrotheriidae Proticia Trigodon Gyrinodon Rhyphodon Proadinotherium Eohyrax Neolicaphrium Anayatherium Archaeotypoth

erium Proectocion Shecenia Epitherium Wainka Propyrotherium Pachyrukhos Macraucheniinae Umayodus Ernestokokenia Henricosborniidae Protolipterna Dolichostylodon Pisanodon Punahyrax Brucemacfaddenia Piauhytherium Interatherium Trigonostylops Adinotherium Pseudotypotherium Notopithecus Notoetayoa Thomashuxleya Chasicotherium Simpsonotus Ethegotherium Victorlemoinea Neobrachytherium Macraucheniopsis Asmodeus (mammal) Albertogaudrya Notostylopidae Colpodon Hypsitherium Campanorco Interatheriinae Archaeopithecus Cramaucheniinae Plesiotypotherium Requisia Rhynchippus Parastrapotherium Diplasiotherium Proargyrohyrax Archaeopithecidae Typotheriopsis Altitypotherium Deuterotherium Perutherium Gualta cuyana Adianthus Thadanius