†[Eusauropoda] Upchurch 1995 †Neosauropoda Bonaparte 1986 [Wilson & Sereno 1998] †Macronaria Wilson & Sereno 1998 †Titanosauriformes Salgado, Coria & Calvo 1997 †Somphospondyli Wilson & Sereno 1998 Genus †Argentinosaurus Bonaparte & Coria, 1993, incertae sedis [monotypic] †Argentinosaurus hunculensis d'Emic, 2012, nom. null. see Argentinosaurus huinculensis Bonaparte & Coria, 1993