Mammalia Linnaeus, 1758
Adianthus Ameghino, 1891
Adiantoides Simpson & Minoprio, 1949
Adiantus Ameghino, 1893
Coelosoma Ameghino, 1891
Coniopternium Ameghino, 1895
Cramauchenia Ameghino, 1902
Cullinia Cabrera & Kraglievich, 1931
Ernestohaeckelia Ameghino, 1901
Macrauchenia Owen, 1838
Macraucheniopsis Couto, 1945
Macrauchenopsis
Notodiaphorus Loomis, 1914
Oxyodontherium Ameghino, 1883
Paramacrauchenia Bordas, 1939
Phoenixauchenia Ameghino, 1904
Proadiantus Ameghino, 1897
Proheptaconus
Promacrauchenia Ameghino, 1904
Theosodon Ameghino, 1887
Thesodon
