Clade Cynodontia Owen 1861 [Gauthier, Kluge & Rowe 1988]
   Clade Epicynodonts Hopson & Kitching 2001
     Clade Eucynodontia Kemp 1982 [Rowe 1993]
       Clade Mammaliamorpha Rowe 1988
         Class Mammalia Linnaeus, 1758 - mammals
           Family †Thereuodontidae Sigogneau-Russell & Ensom, 1998, sedis mutabilis [monotypic]
             1 Genus †Thereuodon Sigogneau-Russell, 1989