organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Eukaryota Chatton, 1925 - eukaryotes see Domain Eukaryota Chatton, 1925
     Kingdom Animalia Linnaeus, 1758 - animals
       Deuterostomia Grobben, 1908 - deuterostomes see Infrakingdom Deuterostomia Grobben, 1908
         Phylum Chordata Bateson, 1885 - chordates
           Subphylum Vertebrata Cuvier, 1812 - vertebrates
             Superclass Tetrapoda Goodrich, 1930 - tetrapods see Clade Tetrapoda Hatschek & Cori 1896 [Gauthier, Kluge & Rowe 1988]
               Class Reptilia Linnaeus, 1758 - reptiles
                 Subclass †Synapsida Osborn, 1903 - synapsids see Class Synapsida Osborn, 1903
                   Order †Therapsida Broom, 1905 see [unranked] Therapsida Broom, 1905
                     Suborder †Cynodontia Owen, 1861 - cynodonts see Clade Cynodontia Owen 1861 [Gauthier, Kluge & Rowe 1988]
                       1 Family †Procynosuchidae Broom, 1937
                       2 Family †Viviniidae
                       3 Family †Galesauridae Lydekker, 1890
                       4 Family †Cynognathidae Seeley, 1895
                       5 Family †Diademodontidae Haughton, 1925
                       6 Family †Traversodontidae Huene, 1936
                       7 Family †Chiniquodontidae Huene, 1936
                       8 Family †Tritylodontidae Cope
                       9 Family †Trithelodontidae Broom see Family Tritheledontidae Broom