Clade Cynodontia Owen 1861 [Gauthier, Kluge & Rowe 1988]
Count: [*†*] 1c;5o;2f; †14o;25f;96g
   Clade Epicynodonts Hopson & Kitching 2001
  Count: [*†*] 1c;5o;2f; †14o;25f;94g
     Clade Eucynodontia Kemp 1982 [Rowe 1993]
    Count: [*†*] 1c;5o;2f; †14o;23f;93g
       Clade Mammaliamorpha Rowe 1988
      Count: [*†*] 1c;5o;2f; †14o;23f;90g
         Class Mammalia Linnaeus, 1758 - mammals
        Count: [*†*] 5o;2f; †14o;21f;88g
           Family †Woutersiidae Sigogneau-Russell & Hahn, 1995 [monotypic]
          Count: [†*] †1g [16 Mar 2022]
             1 Genus †Woutersia Sigogneau-Russell, 1983
            Count: -