Phylum Chordata Bateson, 1885 - chordates
   Subphylum Vertebrata Cuvier, 1812 - vertebrates see Infraphylum Vertebrata Lamarck, 1801
     Class Reptilia Linnaeus, 1758 - reptiles
       Subclass Diapsida Osborn, 1903 - diapsids see Clade Diapsida Osborn 1903 [Gauthier & de Queiroz 2020]
         Infraclass Archosauromorpha Huene, 1946 see Clade Archosauromorpha Huene 1946 [Benton 1985], nom. cl. inval.
           Superorder Archosauria Cope, 1869 - archosaurs see Clade Archosauria Cope 1869 [Gauthier & Padian 1985], nom. cl. inval.
             Order †Saurischia Seeley, 1887 see Clade Saurischia Seeley 1888 [Gauthier, Langer, Novas, Bittencourt & Ezcurra 2020]
               Suborder †Sauropodomorpha Huene, 1932 see Order Sauropodomorpha Huene, 1932
                 Infraorder †Sauropoda Marsh, 1878 see Clade Sauropoda Marsh 1878 [Salgado et al. 1997]
                   Family †Titanosauridae Lydekker, 1893 - titanosaurids
                     01 Genus †Aegyptosaurus Stromer, 1932
                     02 Genus †Aeolosaurus Powell, 1987
                     03 Genus †Aepisaurus Gervais, 1853, nom. dub.
                     04 Genus †Alamosaurus Gilmore, 1922
                     05 Genus †Antarctosaurus Huene, 1929
                     06 Genus †Argyrosaurus Lydekker, 1893
                     07 Genus †Campylodoniscus Kuhn, 1961, nom. dub.
                     08 Genus †Chondrosteosaurus Owen, 1876, nom. dub.
                     09 Genus †Hypselosaurus Matheron, 1869, nom. dub.
                     10 Genus †Lametasaurus Matley, 1923, nom. dub.
                     11 Genus †Laplatasaurus von Huene, 1928
                     12 Genus †Loricosaurus von Huene, 1929
                     13 Genus †Macrurosaurus Seeley, 1869, nom. dub.
                     14 Genus †Microcoelus Lydekker, 1894, nom. dub.
                     15 Genus †Saltasaurus Bonaparte & Powell, 1980
                     16 Genus †Titanosaurus Lydekker, 1877, nom. dub.