Kingdom [Animalia] Linnaeus, 1758 - animals
Subkingdom Metazoa Haeckel, 1874
see Kingdom Animalia Linnaeus, 1758
Division Eumetazoa Butschli, 1910
see Subkingdom Eumetazoa Butschli, 1910
Subdivision Bilateralia
Phylum Chordata Bateson, 1885 - chordates
Subphylum Vertebrata Cuvier, 1812 - vertebrates
Class Reptilia Linnaeus, 1758 - reptiles
Subclass Archosauria Cope, 1869
see Division Archosauria Cope, 1869
Order †Saurischia Seeley, 1887
see Clade Saurischia Seeley 1888 [Gauthier, Langer, Novas, Bittencourt & Ezcurra 2020]
Suborder †Sauropodomorpha Huene, 1932
see Order Sauropodomorpha Huene, 1932
Family †Atlantosauridae Marsh, 1877
see Family Diplodocidae Marsh, 1884
Genus †Atlantosaurus Marsh, 1877, nom. dub.