Tetrapoda Hatschek & Cori 1896 [Gauthier, Kluge & Rowe 1988]
Count: 1g; †5f;20g;4s
   Amniota Haeckel, 1866 [Gauthier, Kluge & Rowe 1988] - amniotes
  Count: 1g; †5f;20g;4s
     Synapsida Osborn 1903 [Gauthier et al. 1989]
    Count: †5f;20g;4s
       Therapsida Broom, 1905
      Count: †5f;17g;4s
         †Eutheriodontia
        Count: †5f;17g;4s
           Cynodontia Owen 1861 [Gauthier, Kluge & Rowe 1988]
          Count: †5f;17g;4s
             Mammaliamorpha Rowe 1988
            Count: †5f;10g;4s
               Mammaliaformes Rowe 1988
              Count: †2f;10g;4s
                 Mammalia Linnaeus 1758 [Rowe 1988], nom. cl. inval. see Class Mammalia Linnaeus, 1758
                Count: †8g;4s
                   Genus †Phascolotherium Owen, 1838
                  Count: †1s
                     1 †Phascolotherium bucklandi (Broderip, 1828)
                    Count: -