Proterotheriidae Ameghino, 1887

Anisolambda Ameghino, 1901

Brachytherium Ameghino, 1883

Deuterotherium Ameghino, 1895

Diadiaphorus Ameghino, 1887

Diplasiotherium Rovereto, 1914

Eoauchenia Ameghino, 1887

Eoproterotherium Ameghino, 1904

Eoprotherotherium Ameghino, 1904

Epecuenia Cabrera, 1939

Epitherium Ameghino, 1888

Glyphodon Roth, 1899

Guilielmofloweria Ameghino, 1901

Heptaconus Ameghino, 1894

Heteroglyphis Roth, 1899

Josepholeidya Ameghino, 1901

Licaphrium Ameghino, 1887

Licaphrops Ameghino, 1904

Oroacrodon Ameghino, 1904

Phoradiadius Simpson, Minoprio & Patterson, 1962

Picturotherium

Polyacrodon Roth, 1899

Polymorphis Roth, 1899

Prolicaphrium Ameghino, 1902

Proterotherium Ameghino, 1883

Prothoatherium Ameghino, 1901

Ricardolydekkeria Ameghino, 1901

Tetramerorhinus Ameghino, 1894

Thoatherium Ameghino, 1887

Tichodon Ameghino, 1894

Victorlemoineia Ameghino, 1901

Wainka Simpson, 1935