†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
             1.1 Genus †Euhelopus Romer, 1956
             1.2.1 Genus †Erketu Ksepka & Norell, 2006
             1.2.2 Genus †Gobititan You, Tang F. & Luo, 2003
             2.1 Genus †Qiaowanlong You & Li, 2009
             2.2.1 Genus †Phuwiangosaurus Martin, Buffetaut & Suteethorn, 1994
             2.2.2 Genus †Tangvayosaurus Allain, Taquet, Battail, Dejax, Richir, Veran, Limon-Duparcmeur, Vacant, Mateus, Sayarath, Khenthavong & Phouyavong, 1999