Santa Lucía Formation Phenacodus Umayodus Victorlemoinea Didolodus Tiupampan Amilnedwardsia Pascualihippus Pseudobrachytherium Proacrodon Toxodontia Typotheria Eoauchenia Hegetotheriopsis Astrapotheria Patriarchus Teratopithecus Juchuysillu Saltaodus Comahuetherium Micrauchenia Guilielmofloweria Propachyrucos Olisanophus Coquenia Notohippus Anayatherium Pyrotheria Mesolicaphrium Notiolofos Eomorphippus Paranisolambda Ultrapithecus Phoenixauchenia Thoatheriopsis Notioprogonia Tricoelodus Adianthidae Requisia Henricosborniidae Maddenia Megadolodus Thadanius Fiandraia Chasicotherium Bounodus Lamegoia Boleatherium Not…

toetayoa Archaeogaia Leontinia Paginula Uruguaytherium Polymorphis Carolodarwinia Picturotherium Santiagorothia Allalmeia Mesotheriidae Astrapothericulus Morphippus Peripantostylops Isotemnidae Protolipterna Windhausenia Tremacyllus Dolichostylodon Transpithecus Palyeidodon South American native ungulates Sparnotheriodontidae Sparnotheriodon Eotypotherium Martinmiguelia Archaeopithecidae Archaeohyrax Medistylus Didolodontidae Piauhytherium Prohegetoth

erium Liarthrus Mendozahippus Hegetotheriidae Hegetotherium Oldfieldthomasiidae Oldfieldthomasia Prolicaphrium Notonychops Epitherium Propyrotherium Wainka Othnielmarshia Nonotherium Brachytherium Termastherium Eoastrapostylops Rhyphodon Proadinotherium Trigodon Archaeotypotherium Eohyrax Neolicaphrium Gyrinodon Nanolophodon Proectocion Homalodotherium Shecenia Pisanodon Punahyrax Pseudotypotherium Notopithecus Neobrachytherium Macraucheniopsis Tetragonostylops Thomashuxleya Ethegotherium Antofagastia Simpsonotus Rodcania Argyrohyrax Mesotherium Archaeohyracidae Neodolodus Cochilius Griphotherion Xesmodon Llullataruca Elmerriggsia Paulogervaisia Otrhonia Rhynchippus Scalabrinitherium Paranauchenia Cramaucheniinae Plesi