†[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 [Genus †Agustinia Bonaparte, 1999, nom. dub. [monotypic]] [†Agustinia ligabuei Bonaparte, 1999, nom. dub.]