Clade Cynodontia Owen 1861 [Gauthier, Kluge & Rowe 1988], nom. cl. inval. see Clade Cynodontia Owen 1861 [Rowe 2020]
   Clade Epicynodonts Hopson & Kitching 2001
     1 Clade Eucynodontia Kemp 1982 [Rowe 1993]
     2 Family †Thrinaxodontidae Watson & Romer, 1956
     3 Family †galesaurids Lydekker, 1890