†Sauropoda Marsh 1878 [Salgado et al. 1997]
   †Neosauropoda Bonaparte 1986 [Wilson & Sereno 1998]
     †Macronaria Wilson & Sereno 1998
       †Titanosauriformes Salgado, Coria & Calvo 1997
         †Somphospondyli Wilson & Sereno 1998
           †Titanosauria Bonaparte & Coria 1993
             †Lithostrotia Upchurch, Barrett & Dodson 2004
               1 Genus †Malawisaurus Jacobs, Winkler, Downs & Gomani, 1993
               2.1.1 Genus †Pitekunsaurus Filippi & Garrido, 2008 [monotypic]
               2.1.2.1 Genus †Epachthosaurus Powell, 1990
               2.1.2.2.1 †Rinconsauria J. Calvo, B. González-Riga & J. Porfiri 2007
               2.1.2.2.2 †Lognkosauria Calvo et al. 2007
               2.2.1 Genus †Aeolosaurus Powell, 1987
               2.2.2 Genus †Rapetosaurus Curry Rogers & Forster, 2001
               2.2.3 Genus †Saltasaurus Bonaparte & Powell, 1980
               2.2.4.1 Genus †Nemegtosaurus Nowinski, 1971
               2.2.4.2 Genus †Tapuiasaurus Zaher, Pol, Carvalho, Nascimento, Riccomini, Larson, Juarez-Valieri, Pires-Domingues, da Silva & Campos, 2011
               2.2.5.1 Genus †Isisaurus Wilson & Upchurch, 2003
               2.2.5.2.1 Genus †Opisthocoelicaudia Borsuk-Białynicka, 1977
               2.2.5.2.2.1 Genus †Alamosaurus Gilmore, 1922
               2.2.5.2.2.2 Genus †Jiangshanosaurus Tang, Kang, Jin, Wei & Wu, 2001