Herpetotheriidae List of the Cenozoic life of Montana List of the Cenozoic life of Nebraska List of the Cenozoic life of Wyoming Wasatch Formation List of prehistoric mammals Stagodontidae Pappotherium Asiatherium Sinodelphys Atokatheridium Chulpasia Andinodelphys Australohyaena Deltatheroides Arminiheringia Gurlin Tsav skull Deltatheridium Scalaridelphys Peratherium Fredszalaya Siamoperadectes Herpetotherium Polydolopimorphia Antarctodolops Arcantiodelphys Unnuakomys Argyrolagus Prothylacinus Proborhyaenidae Oklatheridium Albertatherium Nanocuris Anatoliadelphys Hondalagus Mayulestes Alphadontidae Paraborhyaena Proborhyaena Mimop…

peradectes Deltatheroida Callistoe Gurbanodelta Holoclemensia Maastrichtidelphys Tsagandelta Patagosmilus Lotheridium Eodelphis Pharsophorus Alphadon Bonapartherium Thylacosmilidae Protalphadon Pucadelphys Borhyaena Peradectes Peradectidae Sulestes Epidolops Deltatheridiidae Cladosictis Borhyaenidae Hondonadia Amphiperatherium Thylacosmilus Sparassodonta Didelphodon 2020 in paleomammalogy