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

Eodelphis Amphiperatherium Pharsophorus Protalphadon Thylacosmilidae Bonapartherium Alphadon Peradectes Peradectidae Borhyaena Pucadelphys Hondonadia Borhyaenidae Cladosictis Thylacosmilus Sparassodonta Didelphodon Itaboraian