Iguanodontidae is a family of herbivorous dinosaurs that existed during the Late Jurassic and Early Cretaceous periods. While the name may seem rather unique, there are several synonyms that have been used to refer to this group of dinosaurs. Some of the commonly used synonyms for Iguanodontidae include iguanodontians, iguanodonts, and iguanodontiforms. These synonyms are often used interchangeably and refer to the same group of dinosaurs. Other less commonly used synonyms for Iguanodontidae include Camptosaurus, Tenontosaurus, and Ouranosaurus. Despite the variety of names used to refer to this family, they are all related to the many species of bipedal herbivorous dinosaurs that once roamed the earth.