Iguanodon

The Iguanodon was one of the first dinosaurs ever to be discovered. It lived in the early Cretaceous period, about 110 – 140 million years ago. Growing to a length of 30 feet and a height of 16 feet, it was almost the size of a house! Iguanodon could move on all fours, or just on its hind legs. The “hands” of the Iguanadon made this reptile different from most other dinosaurs. Each hand had five “fingers”. Three fingers in the middle had hooflike claws, which were useful when walking. Another finger could be pulled in toward the palm, and was used to grasp with. A fifth finger was a sharp, spiked thumb, used for defence.