[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 Clade Tetrapoda Hatschek & Cori 1896 [Gauthier, Kluge & Rowe 1988]
                             Class Unnamed
                               Superorder Reptiliomorpha Säve-Söderbergh, 1934 see [unranked] Reptiliomorpha Säve-Söderbergh, 1934
                                 Batrachosauria
                                   Series Amniota Haeckel, 1866 see Clade Amniota Haeckel, 1866 [Gauthier, Kluge & Rowe 1988]
                                     Class Sauropsida Huxley, 1864 see Clade Reptilia Linnaeus 1758 [Gauthier, Kluge & Rowe 1988], nom. cl. inval.
                                       Subclass Diapsida Osborn, 1903 - diapsids see Clade Diapsida Osborn 1903 [Gauthier & de Queiroz 2020]
                                         Neodiapsida Benton 1985
                                           Infraclass Archosauromorpha Huene, 1946 see Clade Archosauromorpha Huene 1946 [Benton 1985], nom. cl. inval.
                                             Division Archosauria Cope, 1869 see Clade Archosauria Cope 1869 [Gauthier & Padian 1985], nom. cl. inval.
                                               Avesuchia Benton, 1999 see Clade Archosauria Cope 1869 [Gauthier & Padian 1985], nom. cl. inval.
                                                 Subdivision Avemetatarsalia Benton, 1999 see Clade Avemetatarsalia Benton 1999
                                                   Infradivision Ornithodira Gauthier, 1986 see Clade Ornithodira Gauthier 1986
                                                     Dinosauromorpha Benton 1985 [Sereno 1991], nom. cl. inval. see Clade Dinosauromorpha Benton 1985 [M. Ezcurra, S. Nesbitt, M. Bronzati, F. Dalla Vecchia, F. Agnolin, R. Benson, ..., M. Langer 2020]
                                                       Dinosauriformes Novas 1992, nom. cl. inval. see Clade Dinosauriformes Novas 1992 [M. Ezcurra, S. Nesbitt, M. Bronzati, F. Dalla Vecchia, F. Agnolin, R. Benson, ..., M. Langer 2020]
                                                         Superorder Dinosauria Owen, 1841 - dinosaurs see Clade Dinosauria Owen 1842 [Langer, Novas, Bittencourt, Ezcurra & Gauthier 2020]
                                                           Order Saurischia Seeley, 1887 see Clade Saurischia Seeley 1888 [Gauthier, Langer, Novas, Bittencourt & Ezcurra 2020]
                                                             Suborder Theropoda Marsh, 1881 see Clade Theropoda Marsh 1881 [Naish, Cau, Holtz Jr., Fabbri & Gauthier 2020]
                                                               Infraorder Tetanurae Gauthier, 1986 see Clade Tetanurae Gauthier 1986
                                                                 Division Coelurosauria Huene, 1914 see Clade Coelurosauria Huene 1914 [Gauthier 1986]
                                                                   Subdivision Maniraptoriformes Holtz, 1996 see Clade Maniraptoriformes Holtz 1995 [Holtz 1996]
                                                                     Infradivision Maniraptora Gauthier, 1986 see Clade Maniraptora Gauthier 1986
                                                                       Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758
                                                                         Subclass Pygostylia Chiappe, 2002 see Clade Pygostylia Chatterjee 1997 [Chiappe 2001]
                                                                           Infraclass Ornithothoraces Chiappe, 1995 see Clade Ornithothoraces Chiappe 1995
                                                                             Supercohort Ornithomorpha nom. null. see Supercohort Ornithuromorpha Chiappe, 2002
                                                                               Cohort Ornithurae Haeckel, 1866 see Clade Ornithurae Haeckel 1866 [Gauthier 1986] {Chiappe 1991}
                                                                                 Subcohort Carinatae Merrem, 1813 see Clade Carinatae Merrem 1813 [Gauthier & de Queiroz 2001]
                                                                                   Superdivision Neornithes Gadow, 1893 see Subclass Neornithes Gadow, 1893
                                                                                     Division Neognathae Pycraft, 1900 see Cohort Neognathae Pycraft, 1900
                                                                                       Subdivision Neoaves Sibley et al., 1988 see Subcohort Neoaves Sibley et al., 1988
                                                                                         Order Psittaciformes Wagler, 1830 - parrots