[Archosauria] Cope 1869 [Gauthier & Padian 1985], nom. cl. inval. see Clade Archosauria Cope 1869 [Gauthier & Padian 2020]
   Dinosauria Owen 1841 [Padian & May 1993], nom. cl. inval. see Clade Dinosauria Owen 1842 [Langer, Novas, Bittencourt, Ezcurra & Gauthier 2020]
     †Sauropodomorpha Huene 1932 [Salgado et al. 1997] see Order Sauropodomorpha Huene, 1932
       †Plateosauria Tornier 1913 [Sereno 1998]
         †Massopoda Yates 2007
           †Anchisauria Galton & Upchurch 2004
             †Sauropodiformes Sereno 2007
               †Sauropoda Marsh 1878 [Salgado et al. 1997]
                 †Eusauropoda Upchurch 1995
                   1.1 Genus †Barapasaurus Jain, Kutty, Roy-Chowdhury & Chatterjee, 1975
                   1.2 Genus †Patagosaurus Bonaparte, 1979
                   2.1 Genus †Shunosaurus Dong, Zhou & Zhang, 1983
                   2.2.1.1 Genus †Cetiosaurus Owen, 1841
                   2.2.1.2 †Neosauropoda Bonaparte 1986 [Wilson & Sereno 1998]
                   2.2.2.1 Genus †Mamenchisaurus Young, 1954
                   2.2.2.2 Genus †Omeisaurus Young, 1939