Rodentia Bowdich, 1821
Allocavia Pascual, 1962
Anoemas Cuvier, 1829
Cardiomys Ameghino, 1885
Cavia Pallas, 1766
Caviodon Ameghino, 1885
Caviops Ameghino, 1908
Dolicavia Ameghino, 1916
Dolichotis Desmarest, 1820
Galea Meyen, 1833
Galecavia Kretzoi & Kretzoi, 2000
Hydrochoeris Brisson, 1762
Hydrochoerus Brisson, 1762
Kerodon F. Cuvier, 1825
Lelongia Kraglievich, 1932
Macrocavia Rusconi, 1933
Microcavia H. Gervais & Ameghino, 1880
Neocavia Kraglievich, 1932
Neoprocavia Ameghino, 1889
Orthomyctera Ameghino, 1889
Palaeocavia Ameghino, 1889
Parodimys Kraglievich, 1932
Pascualia Ortega Hinojosa, 1963
Pliodolichotis Kraglievich, 1927
Procardiomys Pascual, 1961
Prodolichotis Kraglievich, 1932
Propediolagus Ortega Hinojosa, 1963
Strata Ameghino, 1886
