[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Kingdom Animalia Linnaeus, 1758 - animals
     Branch Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
       Division Bilateria Hatschek, 1888 see Subkingdom Bilateria Hatschek, 1888
         Subdivision Deuterostomia Grobben, 1908 see Infrakingdom Deuterostomia Grobben, 1908
           Phylum Chordata Bateson, 1885 - chordates
             Subphylum Vertebrata Cuvier, 1812 - vertebrates see Infraphylum Vertebrata Lamarck, 1801
               Superclass Tetrapoda Goodrich, 1930 - tetrapods see Clade Tetrapoda Hatschek & Cori 1896 [Gauthier, Kluge & Rowe 1988], nom. cl. inval.
                 Class Reptilia Linnaeus, 1758 - reptiles
                   Subclass Archosauria Cope, 1869 see Division Archosauria Cope, 1869
                     Order †Ornithischia Seeley, 1887
                       1 Suborder †Ornithopoda Marsh, 1871 see Infraorder Ornithopoda Marsh, 1881
                       2 Suborder †Stegosauria Marsh, 1877 see Infraorder Stegosauria Marsh, 1877
                       3 Suborder †Ankylosauria Osborn, 1923 see Infraorder Ankylosauria Osborn, 1923
                       4 Suborder †Ceratopsia Marsh, 1890 see Infraorder Ceratopsia Marsh, 1890