Dinosauria Owen 1841 [Padian & May 1993], nom. cl. inval. see Clade Dinosauria Owen 1842 [Langer, Novas, Bittencourt, Ezcurra & Gauthier 2020]
   †Prosauropoda Huene 1920 [Sereno 1998] see Suborder Prosauropoda Huene, 1920
     †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
                 †Lithostrotia Upchurch, Barrett & Dodson 2004
                   1 Genus †Malawisaurus Jacobs, Winkler, Downs & Gomani, 1993
                   2.1.1 Genus †Nemegtosaurus Nowinski, 1971
                   2.1.2.1 Genus †Rapetosaurus Curry Rogers & Forster, 2001
                   2.1.2.2.1 Genus †Isisaurus Wilson & Upchurch, 2003
                   2.1.2.2.2 Genus †Tapuiasaurus Zaher, Pol, Carvalho, Nascimento, Riccomini, Larson, Juarez-Valieri, Pires-Domingues, da Silva & Campos, 2011
                   2.2.1 Genus †Trigonosaurus Campos, Kellner, Bertini & Santucci, 2005
                   2.2.2.1 Genus †Alamosaurus Gilmore, 1922
                   2.2.2.2.1 Genus †Opisthocoelicaudia Borsuk-Białynicka, 1977
                   2.2.2.2.2.1 Genus †Neuquensaurus Powell, 1992
                   2.2.2.2.2.2 Genus †Saltasaurus Bonaparte & Powell, 1980