List of prehistoric mammals Stagodontidae Asiatherium Sinodelphys Atokatheridium Itaboraian Pappotherium Chulpasia Andinodelphys Australohyaena Deltatheroides Arminiheringia Gurlin Tsav skull Deltatheridium Scalaridelphys Peratherium Fredszalaya Siamoperadectes Herpetotherium Polydolopimorphia Antarctodolops Arcantiodelphys Unnuakomys Argyrolagus Prothylacinus Proborhyaenidae Oklatheridium Albertatherium Nanocuris Anatoliadelphys Hondalagus Mayulestes Alphadontidae Paraborhyaena Proborhyaena Mimoperadectes Deltatheroida Callistoe Gurbanodelta Holoclemensia Herpetotheriidae Maastrichtidelphys Tsagandelta Patagosmilus Pharsophorus Loth…

heridium Eodelphis Alphadon Bonapartherium Thylacosmilidae Protalphadon Pucadelphys Borhyaena Peradectes Peradectidae Sulestes Epidolops Deltatheridiidae Cladosictis Amphiperatherium Borhyaenidae Hondonadia Thylacosmilus Itaboraí Formation Sparassodonta Didelphodon