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

partherium Pucadelphys Peradectes Borhyaena Peradectidae Cladosictis Deltatheridiidae Epidolops Sulestes Amphiperatherium Borhyaenidae Hondonadia Thylacosmilus Sparassodonta Didelphodon Itaboraian