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 †Euryapsida Colbert, 1945 see Subclass Diapsida Osborn, 1903
                   1 Order †Araeoscelidia Williston, 1913
                   2 Order †Sauropterygia Owen, 1860 see Superorder Sauropterygia Owen, 1860
                   3 Order †Placodontia Owen, 1859
                   4 Order †Ichthyosauria Blainville, 1835