Dryosaurus
Dryosaurus altus
Dryosaurus ( DRY-ə-SOR-əs, meaning 'tree lizard', Greek δρῦς (drys) meaning 'tree, oak' and σαυρος (sauros) meaning 'lizard' (the name reflects the forested habitat, not a vague oak-leaf shape of its cheek teeth as is sometimes assumed)) is an extinct genus of herbivorous ornithopod dinosaur that lived in the Late Jurassic period. It was an iguanodont (formerly classified as a hypsilophodont). Fossils have been found in the western United States and were first discovered in the late 19th century. Valdosaurus canaliculatus and Dysalotosaurus lettowvorbecki were both formerly considered to represent species of Dryosaurus.
- Family
- Dryosauridae
- Order
- Ornithischia
- Period
- Jurassic (156.3–145.0 Ma)
- Diet
- Herbivore
- Length
- 3.0–4.0 m
- Weight
- 80–100 kg
- Type locality
- Morrison Formation, Wyoming, USA
- Holotype
- YPM 1876
- PBDB
- txn:38731