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
                                                         Ornithuromorpha Chiappe 2001
                                                           Ornithurae Haeckel 1866 [Gauthier 1986] {Chiappe 1991}
                                                             †Hesperornithiformes Sharpe, 1899 see Order Hesperornithiformes Fürbringer, 1888
                                                               Genus †Pasquiaornis Tokaryk et al., 1997
                                                                 †Pasquiaornis tankei Tokaryk et al., 1997