†Sauropoda Marsh 1878 [Salgado et al. 1997] †Neosauropoda Bonaparte 1986 [Wilson & Sereno 1998] †Macronaria Wilson & Sereno 1998 †Titanosauriformes Salgado, Coria & Calvo 1997 1 †Brachiosauridae Riggs 1904 see Family Brachiosauridae Riggs, 1904 2 †Somphospondyli Wilson & Sereno 1998