Apatosaurus
genus of reptiles (fossil)
Domain: Eukaryota • Regnum: Animalia • Phylum: Chordata • Subphylum: Vertebrata • Infraphylum: Gnathostomata • Superclassis: Tetrapoda • Classis: Reptilia • Superordo: Dinosauria • Infraordo: Sauropoda • Superfamilia: Diplodocoidea • Familia: Diplodocidae • Subfamilia: Apatosaurinae • Genus: Apatosaurus
