Fig. 2From: Species concept in North American stegosaursComparison of lambeosaurine hadrosaurs: Corythosaurus casuarius (a), Lambeosaurus lambei (b) and Hypacrosaurus stebingeri (c). Cranial differences are in the crest, whereas most postcranial differences are in the neural spine height. Other differences are minor. Courtesy of Gregory S. Paul. Scale bar 1 mBack to article page