ornithischian, ornithischian dinosaur - herbivorous dinosaur with a pelvis like that of a bird

family Hadrosauridae, Hadrosauridae - duck-billed dinosaurs; upper Cretaceous

anatotitan - one of the largest and most famous duck-billed dinosaurs

corythosaur, corythosaurus - duck-billed dinosaur with nasal passages that expand into a crest like a hollow helmet

edmontosaurus - duck-billed dinosaur from Canada found as a fossilized mummy with skin

trachodon, trachodont - large duck-billed dinosaur of the Cretaceous period