Tetrapoda [Hatschek & Cori 1896 [Gauthier, Kluge & Rowe 1988]]
   Amniota [Haeckel, 1866 [Gauthier, Kluge & Rowe 1988]]
     Synapsida [Osborn 1903 [Gauthier et al. 1989]]
       Therapsida [Broom, 1905]
         †Eutheriodontia
           Cynodontia [Owen 1861 [Gauthier, Kluge & Rowe 1988]]
             Mammaliamorpha [Rowe 1988]
               Mammaliaformes [Rowe 1988]
                 1 †Morganucodontidae [Kühne, 1958]
                 2 †Sinoconodon [Patterson & Olson, 1961]
                 3 †Dinnetherium [Jenkins, Crompton & Downs, 1983]
                 4.1 †Kuehneotheriidae [Kermack, Kermack & Mussett, 1968]
                 4.2 Mammalia Linnaeus, 1758