#apatosaurus
- Apatosaurus — A genus of gigantic sauropod dinosaur, a herbivore that lived during the Late Jurassic period in what is now North America. This remarkable prehistoric animal was characterized by an extremely long neck, a long whip-like tail used for defense, and massive pillar-like limbs that supported a structural weight of dozens of tons, historically known also under the popular name of brontosaurus.