Tenontosaurus was a large iguanodontian ornithopod dinosaur during the Early Cretaceous Period.It was a prey for Acrocanthosaurus.It was shown killing 2 Tenontosaurus.It is 26 feet long and weighing 2 tons.[115-93]
- Tenontosaurus, along with an unnamed iguanodont, is the only ornithopod dinosaur to appear in the series (Although Dryosaurus makes a brief cameo in Biggest Killer Dino).
- Due the discovery of Kulindadromeous of China. Tenontosaurus should have quills on its back, as many ornithopods should have some form of feathers.
- Tenontosaurus had a lump on its nose, something it lacked in real life. However, Altirhinus, another species of iguanodont, had this.