31. When the group first encounters him, he is looking after a sick " Stegosaurus ". 32. Shortly afterwards, the crew are chased into a temple by an aggressive " Stegosaurus ". 33. The scenes were that of the Pteranodons flying overhead and the battle between the Ceratosaurus and the Stegosaurus . 34. Most stegosaurs, but not " Stegosaurus ", also have a spine over each shoulder. 35. Allosaurus could have outrun the ornithopods without taking the risk of tackling larger prey, such as the stegosaurus . 36. "Stegosaurus " remains were first identified during the " Bone Wars " by Othniel Charles Marsh. 37. Earlier analyses had shown " Kentrosaurus " closer in the tree to " Stegosaurus ". 38. Failing one is never fun either, as I did with " Stegosaurus " first time round. 39. Al's Run is long and steep with terrain that resembles the snow-capped back of a stegosaurus . 40. The following cladogram shows the position of " Stegosaurus " within the Stegosauridae according to Mateus, 2009:
