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
                               †Sauropodomorpha Huene 1932 [Salgado et al. 1997] see Order Sauropodomorpha Huene, 1932
                                 †Sauropoda Marsh 1878 [Salgado et al. 1997]
                                   †Eusauropoda Upchurch 1995
                                     1 Genus †Amygdalodon Cabrera, 1947, incertae sedis
                                     2 Genus †Aragosaurus Sanz, Buscalioni, Casanovas-Cladellas & Santafé, 1987, incertae sedis
                                     3 Genus †Hudiesaurus Dong, 1997, incertae sedis
                                     4 Genus †Shunosaurus Dong, Zhou & Zhang, 1983
                                     5.1 †Cetiosauridae Lydekker 1888 see Family Cetiosauridae Lydekker, 1888
                                     5.2.1.1 Genus †Omeisaurus Young, 1939
                                     5.2.1.2 Genus †Tehuelchesaurus Rich, Vickers-Rich, Gimenez, Cúneo, Puerta & Vacca, 1999
                                     5.2.2.1 Genus †Mamenchisaurus Young, 1954
                                     5.2.2.2.1 Genus †Euhelopus Romer, 1956
                                     5.2.2.2.2.1 Genus †Lourinhasaurus Dantas, Sanz, Marques da Silva, Ortega, dos Santos & Cachão, 1998
                                     5.2.2.2.2.2 †Neosauropoda Bonaparte 1986 [Wilson & Sereno 1998]