Dicraeosaurus

Domain: Eukaryota • Regnum: Animalia • Phylum: Chordata • Subphylum: Vertebrata • Infraphylum: Gnathostomata • Superclassis: Tetrapoda • Cladus: Amniota • Cladus: Reptilia • Superordo: Dinosauria • Infraordo: Sauropoda • Superfamilia: Diplodocoidea • Familia: Dicraeosauridae • Genus: Dicraeosaurus