Saurolophus

- Pronunciation: SAWR-OL-o-fus
- Translation: Crested (or Ridged) Lizard
- Order: Ornithischia
- Suborder: Ornithopoda
- Infraorder: Iguanodontia
- Family: Hadrosauridae
- Height: 17 feet (5.2 meters)
- Length: 31.8 feet (9.7 meters)
- Period: Late Cretaceous
- Description: Herbivore, Bipedal
- Notes: Found in North America and China, this duck-billeddinosaur had a bony spike projecting from the back of its head.Saurolophus is well-known from very complete remains, including skin casts.