Fig. 1From: Evolutionary Transitions Among Dinosaurs: Examples from the Jurassic of ChinaOrnithopod dinosaurs, showing specialized duck-billed dinosaurs and more primitive species with transitional features. a Skeleton of the hadrosaurid Gryposaurus incurvimanus; b skeleton of the hadrosaurid Corythosaurus casuarius; c skeleton of Iguanodon bernissartensis; d skull of Iguanodon bernissartensis; e skull of Hypsilophodon foxiiBack to article page