Mammalia Linnaeus, 1758
Eutrachytherus Ameghino, 1897
Eutypotherium Roth, 1901
Mesotherium Serres, 1857
Microtypotherium
Plesiotypotherium Villarroel, 1974
Proedium Ameghino, 1895
Proedrium Ameghino, 1897
Pseudotypotherium Ameghino, 1904
Trachytherus Ameghino, 1889
Typothericulus Kraglievich, 1930
Typotheriopsis Cabrera & Kraglievich, 1930
Xenotherium Ameghino, 1904
