Tetrapoda Hatschek & Cori 1896 [Gauthier, Kluge & Rowe 1988]
   Amniota Haeckel, 1866 [Gauthier, Kluge & Rowe 1988] - amniotes
     Eureptilia Olson, 1947
       Diapsida Osborn 1903 [Laurin 1991] see Clade Diapsida Osborn 1903 [Gauthier & de Queiroz 2020]
         Neodiapsida Benton 1985
           Archosauromorpha Huene 1946 [Benton 1985], nom. cl. inval. see Clade Archosauromorpha von Huene 1946 [Gauthier 2020]
             Archosauria Cope, 1869
               Avesuchia Benton, 1999 see Clade Archosauria Cope 1869 [Gauthier & Padian 1985], nom. cl. inval.
                 Avemetatarsalia Benton 1999 see Clade Ornithodira Gauthier 1986
                   Ornithodira Gauthier 1986 see Clade Ornithodira Gauthier 1986 [M. Ezcurra, S. Nesbitt, M. Bronzati, F. Dalla Vecchia, F. Agnolin, R. Benson, ..., M. Langer 2020]
                     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]
                         Dinosauria Owen 1841 [Padian & May 1993], nom. cl. inval. see Clade Dinosauria Owen 1842 [Langer, Novas, Bittencourt, Ezcurra & Gauthier 2020]
                           Saurischia Seeley 1887 [Gauthier 1986], nom. cl. inval. see Clade Saurischia Seeley 1888 [Gauthier, Langer, Novas, Bittencourt & Ezcurra 2020]
                             Eusaurischia Padian et al. 1999
                               Theropoda Marsh 1881 [Gauthier 1986] see Clade Theropoda Marsh 1881 [Naish, Cau, Holtz Jr., Fabbri & Gauthier 2020]
                                 Tetanurae Gauthier 1986
                                   Avetheropoda Paul 1988 [Padian et al. 1999]
                                     Coelurosauria Huene 1914 [Gauthier 1986]
                                       Tyrannoraptora Sereno 1999, nom. cl. inval.
                                         Maniraptoriformes Holtz 1995 [Holtz 1996]
                                           Maniraptora Gauthier 1986
                                             Paraves Sereno 1997 [Sereno 1998]
                                               Eumaniraptora Padian, Hutchinson & Holtz 1997 [Padian et al. 1999] see Clade Paraves Sereno 1997 [Sereno 1998]
                                                 Avialae Gauthier 1986
                                                   Aves Linnaeus 1758 [Gauthier 1986], nom. cl. inval. see Subclass Aves Linnaeus, 1758
                                                     Pygostylia Chatterjee 1997 [Chiappe 2001]
                                                       Ornithothoraces Chiappe 1995
                                                         †Enantiornithes Walker 1981 [Sereno 1998] see Infraclass Enantiornithes Walker, 1981
                                                           01.1 Genus †Noguerornis Lacasa-Ruiz, 1989
                                                           01.2 Genus †Iberomesornis Sanz & Bonaparte, 1992
                                                           02 Genus †Alexornis Brodkorb, 1976
                                                           03 Genus †Avisaurus Brett-Surman & Paul, 1985
                                                           04 Genus †Boluochia Zhou, 1995
                                                           05 Genus †Cathayornis Zhou, Jin & Zhang, 1992
                                                           06 Genus †Eocathayornis Zhou, 2002
                                                           07 Genus †Eoenantiornis L. Hou et al., 1999
                                                           08 Genus †Enantiornis C.A. Walker, 1981
                                                           09 Genus †Gurilynia Kurochkin, 1999
                                                           10 Genus †Halimornis Chiappe et al., 2002
                                                           11 Genus †Kizylkumavis Nessov, 1984
                                                           12 Genus †Lectavis Chiappe, 1993
                                                           13 Genus †Lenesornis Kurochkin, 1996
                                                           14 Genus †Nanantius Molnar, 1986
                                                           15 Genus †Otogornis Hou, 1994
                                                           16 Genus †Protopteryx Zhang & Zhou, 2000
                                                           17 Genus †Sazavis Nessov & Yarkov, 1989
                                                           18 Genus †Soroavisaurus Chiappe, 1993
                                                           19 Genus †Yungavolucris Chiappe, 1993
                                                           20 Genus †Zhyraornis Nessov, 1984
                                                           21 †Euenantiornithes Chiappe 2002 see Superorder Euenantiornithes Chiappe, 2002