Clade Cynodontia Owen 1861 [Gauthier, Kluge & Rowe 1988], nom. cl. inval. see Clade Cynodontia Owen 1861 [Rowe 2020]
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, nom. cl. inval. see Clade Mammaliamorpha Rowe 1988 [Rowe 2020]
      Count: [*†*] 1c;5o;2f; †14o;23f;90g
         Class Mammalia Linnaeus, 1758 - mammals
        Count: [*†*] 5o;2f; †14o;21f;88g
           Clade Yinotheria Chow & Rich 1982 [Kielan-Jaworowska, Cifelli & Luo 2004]
          Count: [*†*] 1o;2f; †2o;2f;4g
             Subclass Australosphenida Luo, Cifelli & Kielan-Jaworowska, 2001 see Clade Australosphenida Luo, Cifelli & Kielan-Jaworowska 2001
            Count: [*†*] 1o;2f; †1o;2f;4g
               Order †Ausktribosphenida Rich,Vickers-Rich, Constantine, Flannery, Kool & van Klaveren, 1997
              Count: [†*] †2g
                 Genus †Ausktribosphenos Rich, Vickers-Rich, Constantine, Flannery, Kool & van Klaveren, 1997, sedis mutabilis
                Count: -