List of the Cenozoic life of Montana List of prehistoric mammals Cimolesta Schowalteria Megaleptictis Leptictis Maelestes Borisodon Merialus Buxolestes Palaeosinopa Asioryctitheria Conoryctella Palaeoryctes Pantolestidae Valentinella Ambolestes Bisonalveus Horolodectes Didelphodus Khuduklestes Tillodontia Zalambdalestidae Kennalestes Deccanolestes Acristatherium Wyonycteris Azygonyx Juramaia Chacopterygus Ukhaatherium Montanalestes Hyotheridium Cimolestes Durlstodon Zalambdalestes Trogosus Oxlestes Sahnitherium Durlstotherium Betonnia Plethorodon Adapisoriculidae Bustylus Azilestes Kopidodon Gypsonictops Conoryctinae Conoryctidae Stylinodon Cokotherium Kharmerungulatum Meiostylodon Afrodon Stylinodont…

tinae Psittacotherium Zhelestidae Wortmania Palaeoryctidae Stylinodontidae Taeniodonta Leptictida Ectoganus Leptictidium