Tenontosaurus was a keystone species of the dinosaur world at the time. It was able to adapt to any enviroment because fossils of them have been found living in areas that is dry and harsh. Spite its apperance to be a quick and easy meal. It is suppringly not a easy meal. Its tail mucles where strong enough to break a leg and it is capable of running of fast speeds. Other than deserts, there fossils fossils where found in areas that once was rich forests. Tenontosaurus was not a Hadrosaur but a member of the Iguanodont species.