Dinosauria Owen 1841 [Padian & May 1993], nom. cl. inval. see Clade Dinosauria Owen 1842 [Langer, Novas, Bittencourt, Ezcurra & Gauthier 2020]
   †Prosauropoda Huene 1920 [Sereno 1998] see Suborder Prosauropoda Huene, 1920
     †Sauropoda Marsh 1878 [Salgado et al. 1997]
       †Eusauropoda Upchurch 1995
         †Neosauropoda Bonaparte 1986 [Wilson & Sereno 1998]
           †Macronaria Wilson & Sereno 1998
             †Titanosauriformes Salgado, Coria & Calvo 1997
               1 Genus †Euhelopus Romer, 1956
               2 Genus †Erketu Ksepka & Norell, 2006
               3 Genus †Chubutisaurus del Corro, 1975
               4 Genus †Moabosaurus Britt, Scheetz, Whiting & Wilhite, 2017 [monotypic]
               5.1 Genus †Galvesaurus Barco, Canudo, Cuenca-Bescós & Ruíz-Omeñaca, 2005 see Genus Galveosaurus Sánchez-Hernández, 2005
               5.2 Genus †Tastavinsaurus Canudo, Royo-Torres & Cuenca-Bescós, 2008
               6 †Brachiosauridae Riggs 1904 see Family Brachiosauridae Riggs, 1904
               7 †Somphospondyli Wilson & Sereno 1998