†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 †Euhelopodidae Romer 1956 [D'Emic 2012] see Family Euhelopodidae Romer, 1956 Genus †Erketu Ksepka & Norell, 2006