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]
     †Sauropodomorpha Huene 1932 [Salgado et al. 1997] see Order Sauropodomorpha Huene, 1932
       †Sauropoda Marsh 1878 [Salgado et al. 1997]
         †Eusauropoda Upchurch 1995
           †Neosauropoda Bonaparte 1986 [Wilson & Sereno 1998]
             †Macronaria Wilson & Sereno 1998
               †Titanosauriformes Salgado, Coria & Calvo 1997
                 †Somphospondyli Wilson & Sereno 1998
                   †Titanosauria Bonaparte & Coria 1993
                     †Saltasauridae Sereno 1998 see Family Saltasauridae Powell, 1992
                       1 †Saltasaurinae Powell 1992 see Subfamily Saltasaurinae Powell, 1992
                       2 †Opisthocoelicaudinae Sereno 1998 see Clade Opisthocoelicaudiinae