[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Eukaryotes see Domain Eukaryota Chatton, 1925
     Metazoa Haeckel 1874 - multicellular animals see Kingdom Animalia Linnaeus, 1758
       Bilateria Hatschek, 1888 - bilaterians see Subkingdom Bilateria Hatschek, 1888
         Deuterostomia Grobben, 1908 - deuterostomes see Infrakingdom Deuterostomia Grobben, 1908
           Phylum Chordata Bateson, 1885 - chordates
             Subphylum Vertebrata Cuvier, 1812 - vertebrates
               Infraphylum Gnathostomata Gegenbaur, 1874 - jawed vertebrates see Superclass Gnathostomata Gegenbaur, 1874
                 Class Osteichthyes Huxley, 1880 - bony fishes see [unranked] Euteleostomi
                   Subclass Sarcopterygii Romer, 1955 see Clade Sarcopterygii Romer, 1955
                     Infraclass Crossopterygii Huxley, 1861
                       Infraclass Tetrapodomorpha Ahlberg, 1991 see [unranked] Tetrapodomorpha Ahlberg, 1991
                         Superorder Osteolepidida Boulenger, 1901 see [unranked] Osteolepidimorpha
                           Superclass Tetrapoda Goodrich, 1930 - tetrapods see [unranked] Tetrapoda Goodrich, 1930
                             Class Unnamed
                               Superorder Reptiliomorpha Säve-Söderbergh, 1934 see [unranked] Reptiliomorpha Säve-Söderbergh, 1934
                                 Batrachosauria
                                   Series Amniota Haeckel, 1866 see [unranked] Amniota Haeckel, 1866
                                     Class Sauropsida Huxley, 1864 see [unranked] Reptilia Linnaeus, 1758
                                       Subclass Diapsida Osborn, 1903 - diapsids see Clade Diapsida Osborn 1903 [Laurin 1991]
                                         Neodiapsida Benton 1985 [Laurin 1991] see Clade Neodiapsida Benton 1985 [Laurin 1991] {Reisz, Modesto & Scott 2011}
                                           Infraclass Archosauromorpha Huene, 1946 see Clade Archosauromorpha Huene 1946 [Gauthier, Kluge & Rowe 1988] {Laurin 1991}
                                             Division Archosauria Cope, 1869 see Clade Archosauria Cope 1869 [Gauthier & Padian 1985]
                                               Avesuchia Benton, 1999
                                                 Subdivision Avemetatarsalia Benton, 1999 see Clade Avemetatarsalia Benton 1999
                                                   Infradivision Ornithodira Gauthier, 1986 see Clade Ornithodira Gauthier 1986
                                                     Dinosauromorpha Benton 1985
                                                       Dinosauriformes Novas 1992
                                                         Superorder Dinosauria Owen, 1841 - dinosaurs see Clade Dinosauria Owen 1841
                                                           Order †Ornithischia Seeley, 1887
                                                             †Genasauria Sereno 1986
                                                               Suborder †Cerapoda Sereno, 1986
                                                                 1 †Marginocephalia Sereno 1986
                                                                 2 Infraorder †Ornithopoda Marsh, 1881