Herpetotheriidae Peradectes Nacimiento Formation List of the Cenozoic life of Montana List of the Cenozoic life of Wyoming List of the Cenozoic life of Colorado List of prehistoric mammals Stagodontidae Asiatherium Pappotherium Atokatheridium Sinodelphys Australohyaena Andinodelphys Chulpasia Arminiheringia Gurlin Tsav skull Antarctodolops Herpetotherium Polydolopimorphia Fredszalaya Peratherium Scalaridelphys Patagosmilus Tsagandelta Unnuakomys Siamoperadectes Arcantiodelphys Argyrolagus Eodelphis Lotheridium Proborhyaena Paraborhyaena Alphadontidae Prothylacinus Deltatheroides Mayulestes Hondalagus Anatoliadelphys Maastrichtidelphys Callistoe Holoclemensia Gurbanodelta Deltatheridium Albertatherium Nanocuris Oklather…

ridium Deltatheroida Mimoperadectes Sulestes Borhyaenidae Hondonadia Pharsophorus Thylacosmilidae Protalphadon Proborhyaenidae Bonapartherium Deltatheridiidae Epidolops Amphiperatherium Borhyaena Peradectidae Pucadelphys Cladosictis Alphadon Thylacosmilus Sparassodonta Didelphodon 2012 in paleomammalogy