Rodentia Bowdich, 1821
Acarechimys Patterson, 1965
Adelphomys Ameghino, 1887
Boromys Miller, 1916
Brotomys Miller, 1916
Callistomys Emmons & Vucetich, 1998
Carterodon Waterhouse, 1848
Caviocricetus Vucetich & Verzi, 1996
Chaetomys Gray, 1843
Chasichimys Pascual, 1967
Clyomys Thomas, 1916
Dactylomys I. Geoffroy, 1838
Deseadomys Wood & Patterson, 1959
Dicolpomys Winge, 1887
Diplomys Thomas, 1916
Echimys G. Cuvier, 1809
Eumysops Ameghino, 1888
Euryzygomatomys Goeldi, 1901
Haplostropha Ameghino, 1891
Heteropsomys Anthony, 1916
Hoplomys J. A. Allen, 1908
Isomyopotamus Rovereto, 1914
Isothrix Wagner, 1845
Kannabateomys Jentink, 1891
Loncherites Anonymous, 1845
Lonchetes Billberg, 1828
Lonchothrix Thomas, 1920
Makalata Husson, 1978
Maruchito Vucetich, Mazzoni & Pardiñas, 1993
Matyoscor Ameghino, 1902
Mesomys Wagner, 1845
Morenella Palmer, 1903
Myocastor Kerr, 1792
Neleomys Agassiz, 1846
Olallamys Emmons, 1988
Palaeoechimys Spillmann, 1949
Pampamys Verzi, Vucetich & Montalvo, 1995
Paradelphomys Patterson & Pascual, 1968
Paramyocastor Ameghino, 1904
Pattersomys Pascual, 1967
Pattonomys Emmons, 2005
Paulacoutomys Vucetich, de Souza Cunha & de Alvarenga, 1993
Phyllomys Lund, 1839
Plataeomys Ameghino, 1889
Plateomys Ameghino, 1881
Proatherura Ameghino, 1906
Proechimys J. A. Allen, 1899
Prospaniomys Ameghino, 1902
Prostichomys Kramarz, 2001
Protacaremys Ameghino, 1902
Protadelphomys Ameghino, 1902
Puertoricomys Woods, 1989
Reigechimys Verzi, Vucetich & Montalvo, 1994
Sallamys Hoffstetter & Lavocat, 1970
Santamartamys Emmons, 2005
Spaniomys Ameghino, 1887
Stichomys Ameghino, 1887
Strophostephanos Ameghino, 1891
Thrichomys Trouessart, 1880
Toromys Iack-Ximenes, De Vivo & Percequillo, 2005
Tribodon Ameghino, 1887
Trinomys Thomas, 1921
Willidewu Vucetich & Verzi, 1991
Xylechimys Patterson & Pascual, 1968
