Tetrapoda Hatschek & Cori 1896 [Gauthier, Kluge & Rowe 1988]
Count: -
   Amniota Haeckel, 1866 [Gauthier, Kluge & Rowe 1988] - amniotes
  Count: -
     Eureptilia Olson, 1947
    Count: -
       Diapsida Osborn 1903 [Laurin 1991] see Clade Diapsida Osborn 1903 [Gauthier & de Queiroz 2020]
      Count: -
         Neodiapsida Benton 1985
        Count: -
           Archosauromorpha Huene 1946 [Benton 1985], nom. cl. inval. see Clade Archosauromorpha von Huene 1946 [Gauthier 2020]
          Count: -
             Archosauria Cope, 1869
            Count: -
               Avesuchia Benton, 1999 see Clade Archosauria Cope 1869 [Gauthier & Padian 1985], nom. cl. inval.
              Count: -
                 Avemetatarsalia Benton 1999 see Clade Ornithodira Gauthier 1986
                Count: -
                   Ornithodira Gauthier 1986 see Clade Ornithodira Gauthier 1986 [M. Ezcurra, S. Nesbitt, M. Bronzati, F. Dalla Vecchia, F. Agnolin, R. Benson, ..., M. Langer 2020]
                  Count: -
                     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]
                    Count: -
                       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]
                      Count: -
                         Dinosauria Owen 1841 [Padian & May 1993], nom. cl. inval. see Clade Dinosauria Owen 1842 [Langer, Novas, Bittencourt, Ezcurra & Gauthier 2020]
                        Count: -
                           Saurischia Seeley 1887 [Gauthier 1986], nom. cl. inval. see Clade Saurischia Seeley 1888 [Gauthier, Langer, Novas, Bittencourt & Ezcurra 2020]
                          Count: [†g] †11f;345g;189s
                             Eusaurischia Padian et al. 1999
                            Count: [†g] †10f;340g;184s
                               Theropoda Marsh 1881 [Gauthier 1986] see Clade Theropoda Marsh 1881 [Naish, Cau, Holtz Jr., Fabbri & Gauthier 2020]
                              Count: [†g] †10f;227g;174s
                                 Tetanurae Gauthier 1986
                                Count: [†g] †10f;199g;174s
                                   Avetheropoda Paul 1988 [Padian et al. 1999]
                                  Count: [†g] †10f;174g;155s
                                     Coelurosauria Huene 1914 [Gauthier 1986]
                                    Count: [†g] †10f;154g;148s
                                       Tyrannoraptora Sereno 1999, nom. cl. inval.
                                      Count: [†g] †9f;141g;134s
                                         Maniraptoriformes Holtz 1995 [Holtz 1996]
                                        Count: [†g] †9f;125g;122s
                                           Maniraptora Gauthier 1986
                                          Count: [†g] †8f;114g;110s
                                             Paraves Sereno 1997 [Sereno 1998]
                                            Count: [†g] †3f;86g;75s
                                               Eumaniraptora Padian, Hutchinson & Holtz 1997 [Padian et al. 1999] see Clade Paraves Sereno 1997 [Sereno 1998]
                                              Count: [†g] †3f;86g;75s
                                                 Avialae Gauthier 1986
                                                Count: [†*] †3f;62g;74s
                                                   Aves Linnaeus 1758 [Gauthier 1986], nom. cl. inval. see Subclass Aves Linnaeus, 1758
                                                  Count: [†*] †2f;54g;66s
                                                     Pygostylia Chatterjee 1997 [Chiappe 2001]
                                                    Count: [†*] †1f;51g;62s
                                                       †Confuciusornithidae Hou, Zhou, Gu & Zhang, 1995
                                                      Count: [†*] †2g;3s
                                                         1 Genus †Changchengornis Ji, Chiappe & Ji, 1999
                                                        Count: [†*] †1s
                                                         2 Genus †Confuciusornis Hou, Zhou, Gu & Zhang, 1995
                                                        Count: [†*] †2s