Abderites Ameghino, 1887 † (original description)
Acrocyon Ameghino, 1887 † (original description)
Acrotherium Ameghino, 1887 † accepted as Nesodon Owen, 1847 † (original description)
Acyon Ameghino, 1887 † accepted as Cladosictis Ameghino, 1887 † (original description)
Adelotherium Ameghino, 1887 † (original description)
Adelphomys Ameghino, 1887 † (original description)
Adelphotherium Ameghino, 1887 † accepted as Nesodon Owen, 1847 † (original description)
Adinotherium Ameghino, 1887 † (original description)
Adrastotherium Ameghino, 1887 † (original description)
Agustylus Ameghino, 1887 † (original description)
Anatherium Ameghino, 1887 † accepted as Cladosictis Ameghino, 1887 † (original description)
Atryptherium Ameghino, 1887 † (original description)
Borhyaena Ameghino, 1887 † (original description)
Diadiaphorus Ameghino, 1887 † (original description)
Eucholoeops Ameghino, 1887 † (original description)
Gronotherium Ameghino, 1887 † (original description)
Hapalops Ameghino, 1887 † (original description)
Hathliacynus Ameghino, 1887 † accepted as Cladosictis Ameghino, 1887 † (original description)
Hedymys Ameghino, 1887 † (original description)
Hegetotherium Ameghino, 1887 † (original description)
Licaphrium Ameghino, 1887 † (original description)
Lithops Ameghino, 1887 † (original description)
Microbiotherium Ameghino, 1887 † (original description)
Nematherium Ameghino, 1887 † (original description)
Palaeothentes Ameghino, 1887 † (original description)
Peltephilus Ameghino, 1887 † (original description)
Perimys Ameghino, 1887 † (original description)
Phanomys Ameghino, 1887 † (original description)
Phobereotherium Ameghino, 1887 † (original description)
Phorusrhacos Ameghino, 1887 † (original description)
Planodus Ameghino, 1887 † (original description)
Planops Ameghino, 1887 † (original description)
Pliolagostomus Ameghino, 1887 † (original description)
Propalaehoplophorus Ameghino, 1887 † (original description)
Rhadinotherium Ameghino, 1887 † (original description)
Schismotherium Ameghino, 1887 † (original description)
Schistomys Ameghino, 1887 † (original description)
Sciamys Ameghino, 1887 † (original description)
Scopotherium Ameghino, 1887 † (original description)
Scotaeops Ameghino, 1887 † (original description)
Scotaeumys Ameghino, 1887 † (original description)
Sipalocyon Ameghino, 1887 † (original description)
Sphaeramys Ameghino, 1887 † (original description)
Sphiggomys Ameghino, 1887 † (original description)
Sphodromys Ameghino, 1887 † (original description)
Stegotherium Ameghino, 1887 † (original description)
Stichomys Ameghino, 1887 † (original description)
Stilotherium Ameghino, 1887 † (original description)