The common name for Iguanodon is simply "Iguanodon," which is derived from its distinctive iguana-like teeth. Iguanodon was a herbivorous dinosaur that lived during the Early to Late Jurassic period, around 139 to 112 million years ago. It is known for its large size, with some species reaching up to 33 feet in length. One of its notable features was its thumb spikes, which possibly served for defense and foraging. Iguanodon is considered one of the first dinosaurs to be scientifically described, significantly contributing to early dinosaur research and classification.