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
               †Somphospondyli Wilson & Sereno 1998
                 1 Genus †Ligabuesaururs Britt, Scheetz, Whiting & Wilhite, 2017, nom. null. see Genus Ligabuesaurus Bonaparte, González-Riga & Apesteguía, 2006
                 2 Genus †Phuwiangosaurus Martin, Buffetaut & Suteethorn, 1994
                 3 Genus †Andesaurus Calvo & Bonaparte, 1991
                 4.1 Genus †Tendaguria Bonaparte, Heinrich & Wild, 2000
                 4.2 Genus †Wintonotitan Hocknull et al., 2009
                 5.1 Genus †Mendozasaurus González Riga, 2003
                 5.2 Genus †Malarguesaurus González-Riga, Previtera & Pirrone, 2008
                 5.3 Genus †Argentinosaurus Bonaparte & Coria, 1993, incertae sedis
                 5.4 Genus †Epachthosaurus Powell, 1990
                 5.5 †Lithostrotia Upchurch, Barrett & Dodson 2004