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

theridium Eodelphis Pharsophorus Alphadon Pucadelphys Peradectes Borhyaena Peradectidae Bonapartherium Thylacosmilidae Protalphadon Cladosictis Borhyaenidae Hondonadia Deltatheridiidae Epidolops Sulestes Amphiperatherium Thylacosmilus Sparassodonta Didelphodon Huayquerian South American land mammal age