Iguanodon

Iguanodon is a large, herbivorous dinosaur that roamed Europe during the Early Cretaceous between 130 and 125 million years ago and was one of the first dinosaurs ever discovered. Discovered in 1825 by English paleontologist Gideon Mantell, it was given its name for the "thumb" that was mistaken as being part of a large iguana, though this was later debunked later on. Iguanodon is a dinosaur that roamed in herds and gains nutritions from the grass and vegetation within its environment while sharing it with the fish-eating theropod, Baryonyx. It was made famous in Sir Arthur Conan Doyle's novel The Lost World.