Mammalia Linnaeus, 1758
Bathyopsis Cope, 1881
Bathyopsoides Patterson, 1939
Dinoceras Marsh, 1872
Eobasileus Cope, 1872
Ganatherium
Gobiatherium Osborn & Granger, 1932
Houyanotherium Tong, 1978
Jiaoluotherium Tong, 1978
Mongolotherium Flerov, 1952
Phenaceras
Probathyopsis Simpson, 1929
Prodinoceras Matthew, Granger & Simpson, 1929
Pyrodon Zhai, 1978
Tetheopsis Cope, 1885
Uintatherium Leidy, 1872
Zhaia Kretzoi & Kretzoi, 2000
