Iguanodontia

A lightly built Late Jurassic herbivore from the Morrison Formation, with long hind limbs, a balancing tail and a small beaked head.

A robust Late Jurassic plant-eater from the Morrison Formation, built for powerful hind-limb movement and efficient cropping with a deep beak and ridged cheek teeth.

A large Early Cretaceous herbivore with a thumb spike, a weight-bearing three-fingered hand and a famous Belgian fossil record of about thirty articulated skeletons. Those fossils transformed Iguanodon from a fragmentary curiosity into one of the first well-understood dinosaurs.

A rare Canadian hadrosaur with a long, backward-projecting tubular crest. Its exceptionally important holotype preserves a complete skull and a partial skeleton, including healed injuries that the animal survived.

A large Canadian duck-billed dinosaur whose hollow, helmet-shaped crest enclosed long looping nasal passages and whose holotype preserves skin impressions.

A large Canadian duck-billed dinosaur with a distinctive hollow hatchet-shaped crest containing an intricate looping airway.