Ouranosaurus's distinctive sail might have been used for thermoregulation, acting like a radiator to both absorb and release heat efficiently. elaborate
Shantungosaurus, despite its massive size, is believed to have been a relatively fast runner for a hadrosaur. elaborate
Dryosaurus had a long, stiff tail that may have been used for balance while running. elaborate
Deinocheirus's arms were so long that its hands reached past its knees. elaborate
Heterodontosaurus had different shaped teeth – some like incisors for cropping plants, others like canines for defense, and molars for grinding. This diverse dentition is unique among early ornithischians. elaborate
Pachyrhinosaurus had a bony boss on its nose instead of a horn like other ceratopsians. elaborate