Adelphotherium Ameghino, 1887 † accepted as Nesodon Owen, 1847 † (extant flag source)
Adrastotherium Ameghino, 1887 † (extant flag source)
Aetheca Smit, 1983 (verified source for family)
Afoxella Smit, 1983 (verified source for family)
Amaradix Smit, 1983 (verified source for family)
Amegabothris Smit, 1983 (verified source for family)
Ameghinotherium Podestá, 1898 † (extant flag source)
Anatherium Ameghino, 1887 † accepted as Cladosictis Ameghino, 1887 † (extant flag source)
Astrapodon Ameghino, 1891 † (extant flag source)
Atryptherium Ameghino, 1887 † (extant flag source)
Baculomeris Smit, 1983 (verified source for family)
Callomenus Ameghino, 1891 † (extant flag source)
Celeophilus Smit, 1983 (verified source for family)
Decastis Ameghino, 1891 † (extant flag source)
Diorotherium Ameghino, 1891 † (extant flag source)
Encinepeltus Ameghino, 1891 † (extant flag source)
Eodidelphys Ameghino, 1891 † (extant flag source)
Essoprion Ameghino, 1891 † (extant flag source)
Eumolpianus Smit, 1983 (verified source for family)
Garzonia Ameghino, 1891 † (extant flag source)
Graphimys Ameghino, 1891 † (extant flag source)
Gronotherium Ameghino, 1887 † (extant flag source)
Gyrignophus Ameghino, 1891 † (extant flag source)
Hadrorhynchus Ameghino, 1891 † (extant flag source)
Halmadromus Ameghino, 1891 † (extant flag source)
Halmaselus Ameghino, 1891 † (extant flag source)
Hubbardipsylla Smit, 1983 (verified source for family)
Igioffius Smit, 1983 (verified source for family)
Iochilus Ameghino, 1928 † (extant flag source)
Kueichenlipsylla Smit, 1983 † (verified source for family)
Lithops Ameghino, 1887 † (extant flag source)
Margopsylla Smit, 1983 (verified source for family)
Metopotherium Ameghino, 1891 † (extant flag source)
Oxypsylla Smit, 1983 (verified source for family)
Paraplanops Ameghino, 1891 † (extant flag source)
Phobereotherium Ameghino, 1887 † (extant flag source)
Planodus Ameghino, 1887 † (extant flag source)
Plusaetis Smit, 1983 (verified source for family)
Pombea F.J. Caldas, 1810 (habitat flag source)
Procardia Ameghino, 1891 † (extant flag source)
Prodidelphys Ameghino, 1891 † (extant flag source)
Pseudocoelosoma Ameghino, 1891 † (extant flag source)
Radinotherium Ameghino, 1887 † (extant flag source)
Rhadinotherium Ameghino, 1887 † (extant flag source)
Rhinippus Burmeister, 1875 † (extant flag source)
Scopotherium Ameghino, 1887 † (extant flag source)
Scotaeops Ameghino, 1887 † (extant flag source)
Scotaeumys Ameghino, 1887 † (extant flag source)
Sphaeramys Ameghino, 1887 † (extant flag source)
Sphiggomys Ameghino, 1887 † (extant flag source)
Stereocyon Mercerat, 1917 † (extant flag source)
Stylognathus Ameghino, 1891 † (extant flag source)