Mammalia Linnaeus, 1758
Argyrolambda Ameghino, 1904
Didolodus Ameghino, 1897
Enneoconus Ameghino, 1901
Ernestokokenia Ameghino, 1901
Lamegoia Couto, 1952
Megadolodus McKenna, 1956
Neodolodus Hoffstetter & Soria, 1986
Oxybunotherium Pascual, 1965
Paulogervaisia Ameghino, 1901
Protheosodon Ameghino, 1897
