Rodentia Bowdich, 1821
Alloiomys Vucetich, 1979
Branisamys Hoffstetter & Lavocat, 1970
Calogenus Gray, 1821
Cephalomyopsis Vucetich, 1985
Cephalomys Ameghino, 1897
Cologenis Ameghino, 1881
Cologenyx Ameghino, 1884
Incamys Hoffstetter & Lavocat, 1970
Litodontomys Loomis, 1914
Lomomys Ameghino, 1891
Magestus Ameghino, 1899
Megastus Roth, 1898
Neoreomys Ameghino, 1887
Palmiramys Kraglievich, 1932
Scotamys Loomis, 1914
