Tenontosaurus (/tɪˌnɒntoʊˈsɔːrəs/ ti-NON-toh-SOR-əs; meaning "sinew lizard") is a genus of medium- to large-sized ornithopod dinosaur. The genus is known from the late Aptian to Albian ages of the middle Cretaceous period sediments of western North America, dating between 115 and 108 million years ago.
The Animated Documentary Series was based on the other documentary dinosaur tv shows which is Walking with Dinosaurs, Dinosaur Planet, Planet Dinosaur, and Dinosaur Revolution. featuring 22 episodes
