First known herbivorous dinosaur

Iguanodon, means "Iguana tooth" is the first dinosaur fossil discovered that lived in England during early cretaceous period.It could stand on its hind limbs, and yet normally walk on all fours. If attacked, it could dissuade a predator with its powerful thumb spike.Iguanodon has become quite famous as a result of it's starring role in the Disney animated film Dinosaur, but before that it helped people understand what dinosaurs really looked like. It was one of the first complete skeletons ever found. This allowed scientists who had never seen a complete dinosaur, to figure out what it would have looked like in life. In fact, the first time this common dinosaur was found as just a partial skeleton, scientists put its thumb spike on its nose!