Probactrosaurus

- Pronunciation: pro-BAK-truh-SAWR-us
- Translation: Before Staff Lizard, or Before Bactrosaurus
- Order: Ornithischia
- Suborder: Ornithopoda
- Infraorder: Iguanodontia
- Family: Iguanodontidae
- Height: 12 feet (3.7 meters)
- Length: 19 feet (5.9 meters)
- Period: Early Cretaceous
- Description: Herbivore, Bipedal
- Notes: Found in China and Monglia, Probactrosaurus wassimilar to Bactrosaurus, and it may be an ancestor of thehadrosaurs.