Amnotherium Ameghino, 1891 † accepted as Nematherium Ameghino, 1887 † (original description)
Amphihapalops Ameghino, 1891 † accepted as Hapalops Ameghino, 1887 † (original description)
Analcimorphus Ameghino, 1891 † (original description)
Analcitherium Ameghino, 1891 † (original description)
Anantiosodon Ameghino, 1891 † (original description)
Astrapodon Ameghino, 1891 † (original description)
Callomenus Ameghino, 1891 † (original description)
Chrysochlorys Ameghino, 1891 accepted as Chrysochloris Lacepède, 1799 (original description)
Conodonictis Ameghino, 1891 † (original description)
Dicardia Ameghino, 1891 † accepted as Eocardia Ameghino, 1887 † (original description)
Diorotherium Ameghino, 1891 † (original description)
Encinepeltus Ameghino, 1891 † (original description)
Eodidelphys Ameghino, 1891 † (original description)
Essoprion Ameghino, 1891 † (original description)
Garzonia Ameghino, 1891 † (original description)
Geronops Ameghino, 1891 † accepted as Hapalops Ameghino, 1887 † (original description)
Graphimys Ameghino, 1891 † (original description)
Gyrignophus Ameghino, 1891 † (original description)
Hadrorhynchus Ameghino, 1891 † (original description)
Halmadromus Ameghino, 1891 † (original description)
Halmarhiphus Ameghino, 1891 † (original description)
Halmaselus Ameghino, 1891 † (original description)
Homunculus Ameghino, 1891 † (original description)
Ictioborus Ameghino, 1891 † (original description)
Lomomys Ameghino, 1891 † (original description)
Lymodon Ameghino, 1891 † accepted as Nematherium Ameghino, 1887 † (original description)
Metopotherium Ameghino, 1891 † (original description)
Necrolestes Ameghino, 1891 † (original description)
Paraplanops Ameghino, 1891 † (original description)
Parhapalops Ameghino, 1891 † accepted as Hapalops Ameghino, 1887 † (original description)
Pelecyodon Ameghino, 1891 † (original description)
Perathereutes Ameghino, 1891 † (original description)
Procardia Ameghino, 1891 † (original description)
Prodidelphys Ameghino, 1891 † (original description)
Proeutatus Ameghino, 1891 † (original description)
Prothylacynus Ameghino, 1891 † (original description)
Pseudhapalops Ameghino, 1891 † accepted as Hapalops Ameghino, 1887 † (original description)
Pseudocoelosoma Ameghino, 1891 † (original description)
Stylognathus Ameghino, 1891 † (original description)