List of prehistoric mammals Gurlin Tsav skull Albertatherium Alphadon Pucadelphys Metatheria Sparassodonta Didelphodon Asiatherium Pappotherium Stagodontidae Atokatheridium Sinodelphys Chulpasia Australohyaena Andinodelphys Tiupampan Deltatheroides Santa Lucía Formation Peratherium Fredszalaya Deltatheridium Arcantiodelphys Siamoperadectes Marsupial Arminiheringia Prothylacinus Callistoe Holoclemensia Gurbanodelta Argyrolagus Scalaridelphys Antarctodolops Polydolopimorphia Herpetotherium Sulestes Proborhyaena Paraborhyaena Alphadontidae Hondalagus Mayulestes Anatoliadelphys Proborhyaenidae Tsagandelta Patagosmilus Herpetotheriidae Unnuakomys Maastrichtidelphys Lotheridium Eodelphis …

Mimoperadectes Deltatheroida Oklatheridium Nanocuris Epidolops Deltatheridiidae Pharsophorus Amphiperatherium Thylacosmilidae Protalphadon Bonapartherium Hondonadia Borhyaenidae Peradectes Borhyaena Peradectidae Cladosictis Thylacosmilus