Infraphylum Tetrapoda Goodrich, 1930 see Clade Tetrapoda Hatschek & Cori 1896 [Laurin 2020]
   Superclass Amniota Haeckel, 1866 see Clade Amniota Haeckel 1866 [Laurin & Reisz 2020]
     Paraclass Reptilia Linnaeus, 1758 [paraphyletic] - reptiles
       Parasubclass Diapsida Osborn, 1903 [paraphyletic] - diapsids see Clade Diapsida Osborn 1903 [Gauthier & de Queiroz 2020]
         Parainfraclass Archosauria Cope, 1869 [paraphyletic] see Clade Archosauria Cope 1869 [Gauthier & Padian 2020]
           Superorder †Sauropodomorpha Huene, 1932 see Order Sauropodomorpha Huene, 1932
             Order †Brontosauria Olshevsky, 1991
               Suborder †Sauropoda Marsh, 1878 see Clade Sauropoda Marsh 1878 [Salgado et al. 1997]
                 01 Family †Barapasauridae Halstead & Halstead, 1981
                 02 Parafamily †Cetiosauridae Lydekker, 1888 [paraphyletic]
                 03 Family †Brachiosauridae Riggs, 1904
                 04 Family †Camarasauridae Cope, 1877
                 05 Family †Euhelopodidae Romer, 1956
                 06 Family †Diplodocidae Marsh, 1884
                 07 Family †Dicraeosauridae Janensch, 1929
                 08 Family †Titanosauridae Lydekker, 1885 - titanosaurids
                 09 Family †Chubutisauridae del Corro, 1975 [monotypic] see Family Brachiosauridae Riggs, 1904
                 10 Genus †"Hisanohamasaurus" Lambert, 1990, nom. ined., incertae sedis
                 11 Genus †Regnosaurus Mantell, 1848, nom. dub., incertae sedis
                 12 Genus †"Sugiyamasaurus" Lambert, 1990, nom. ined., incertae sedis