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 †Euhelopodidae Romer, 1956
                     1 Genus †Euhelopus Romer, 1956
                     2 Genus †Mamenchisaurus Young, 1954
                     3 Genus †"Moshisaurus" Hisa, 1985, nom. nud.
                     4 Genus †Omeisaurus Young, 1939
                     5 Genus †Tienshanosaurus Young, 1937