Naturita Formation List of the Mesozoic life of Utah Metatheria Arcantiodelphys List of prehistoric mammals Stagodontidae Pappotherium Atokatheridium Asiatherium Chulpasia Andinodelphys Australohyaena Deltatheroides Gurlin Tsav skull Deltatheridium Sinodelphys Antarctodolops Polydolopimorphia Herpetotherium Arminiheringia Argyrolagus Unnuakomys Fredszalaya Peratherium Prothylacinus Scalaridelphys Proborhyaenidae Patagosmilus Tsagandelta Anatoliadelphys Mayulestes Hondalagus Paraborhyaena Alphadontidae Proborhyaena Siamoperadectes Mimoperadectes Deltatheroida Holoclemensia Callistoe Gurbanodelta Lotheridium Eodelphis Maastrichtidelphys Sulestes Oklatheridium Albert…

tatherium Nanocuris Pharsophorus Herpetotheriidae Alphadon Hondonadia Borhyaenidae Bonapartherium Thylacosmilidae Protalphadon Borhyaena Peradectes Peradectidae Pucadelphys Deltatheridiidae Epidolops Amphiperatherium Cladosictis Thylacosmilus Sparassodonta Didelphodon Cedar Mountain Formation 2016 in paleomammalogy