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Apatosaurus (meanin "deceptive reptile" /əˌpætˈsɔːrəs/) is a genus o extinct sauropod dinosaurs that lived in North Americae during the Late Jurassic period.

Apatosaurus
Temporal range: Late Jurassic, 152–151 Ma
Louisae.jpg
Moontit A. louisae holotype (specimen CM 3018), Carnegie Museum o Naitural History
Scientific classification e
Kinrick: Animalia
Phylum: Chordata
Clade: Dinosauria
Order: Saurischia
Suborder: Sauropodomorpha
Faimily: Diplodocidae
Subfaimily: Apatosaurinae
Genus: Apatosaurus
Marsh, 1877
Teep species
Apatosaurus ajax
Marsh, 1877
Referred Species
  • Apatosaurus louisae Holland, 1916