Camptosaurus

Camptosaurus (name meaning "Bent lizard") is a genus of plant-eating, beaked ornithischian dinosaurs of the Late Jurassic period of western North America. There is ongoing debate regarding the various specimens currently attributed to the genus Camptosaurus. Some scientists believe that a number of the species should be renamed after the type specimen and that their differences are simply individual variation. There have been a number of dinosaurs that were originally classified as Camptosaurus, including an Allosaurus species.

Tn the Series 1 episode "Survival of the Biggest ", a herd of Camptosaurus lived in their lifes from Late Jurassic of 150 million years ago.

Era & Discovery
Allosaurus lived in North America and Europe during the Late Jurassic and Early Cretaceous Period from 156 to 99 million years ago. it shared its environment with other creatures like Ceratosaurus, Ornitholestes, Anurognathus, Brachiosaurus, Diplodocus, Apatosaurus, Camarasaurus, Stegosaurus, Dryosaurus, and Othnielia.

Physical Attributes
Camptosaurus grew to a length of up to 6 metres (20 feet); juvenile skeletons have also been found. It had very strong hind limbs and smaller forelimbs that were strong enough to support the animal if it chose to progress on all fours, as it might have done while feeding.

Camptosaurus was an ornithopod related to tenontosaurids and iguanodontids. It had the distinctive “blocky” wrist of iguanodontids that facilitated four-legged progression. Nevertheless, the hand was also prehensile and could have grasped vegetation as it was feeding. The thumb was a small spur rather than the conelike spike developed in Iguanodon. In other respects, Camptosaurus was a fairly generalized iguanodontid. The skull was low, long, and massive, with long rows of broad leaf-shaped cheek teeth. A beaklike structure (probably covered by horny pads) was effective in getting plant material into the mouth, where it was cut by the cheek teeth. Camptosaurus lacked the deep dorsal spines of many other iguanodontids, and its claws were more normally curved and less hooflike than those of other iguanodontids and hadrosaurs.