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

yaena Pucadelphys Peradectes Peradectidae Bonapartherium Thylacosmilidae Protalphadon Deltatheridiidae Epidolops Herpetotheriidae Alphadon Amphiperatherium Cladosictis Sparassodonta Thylacosmilus Didelphodon Casamayoran