Mammalia Linnaeus, 1758
Anacodon Cope, 1882
Arctocyon de Blainville, 1841
Baioconodon Gazin, 1941
Carcinodon Scott, 1892
Claenodon Scott, 1892
Colpoclaenus Patterson & McGrew, 1962
Desmatoclaenus Gazin, 1941
Deuterogonodon Simpson, 1935
Heteroborus Cope, 1880
Hyodectes Cope, 1880
Karakia Thewissen, Williams & Hussain, 2001
Lambertocyon Gingerich, 1979
Landenodon Quinet, 1966
Loxolophus Cope, 1885
Mentoclaenodon Wiegelt, 1960
Mimotricentes Simpson, 1937
Oxytomodon Gazin, 1941
Princetonia Gingerich, 1989
Prothryptacodon Simpson, 1935
Protogonodon Scott, 1892
Thryptacodon Matthew, 1915
Tricentes Cope, 1883