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
           Clade Trechnotheria McKenna 1975
             Clade Cladotheria McKenna 1975
               1 Superorder †Dryolestoidea Butler, 1939 [monotypic]
               2.1 Order †Amphitheriida Prothero, 1981 [monotypic]
               2.2 Genus †Chunnelodon Ensom & Sigogneau-Russell, 1998, sedis mutabilis
               2.3.1 Family †Vincelestidae Bonaparte, 1986 [monotypic]
               2.3.2 Clade Zatheria McKenna 1975