Cynodontia Owen 1861 [Gauthier, Kluge & Rowe 1988]
   Epicynodonts Hopson & Kitching 2001
     Eucynodontia Kemp 1982 [Rowe 1993]
       Mammaliamorpha Rowe 1988
         Mammalia Linnaeus, 1758 - mammals
           †Sinoconodontidae Mills, 1971
             1 †Sinoconodon Patterson & Olson, 1961