†[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
             1 [plesion] Genus †Andesaurus Calvo & Bonaparte, 1991
             2 †Lithostrotia Upchurch, Barrett & Dodson 2004
             3 [Genus †Agustinia Bonaparte, 1999, nom. dub. [monotypic]]