Key Information
Dryosaurus
| Species | Dryosaurus altus, Dryosaurus elderae |
| Diet | Herbivore |
| Length | 9..8 ft |
| Height | 3 ft |
| Weight | 220 lb |
| Timescale | Late Jurassic |
| Classification | Ornithischia > Neornithischia > Dryosauridae |
Learning Point
- Dryosaurus was a small, two-legged herbivorous dinosaur belonging to the hadrosaur family. It lived in North America during the Late Jurassic period and is characterized by its slender build, long legs, and small hands. Dryosaurus likely inhabited forested areas, using its sharp teeth to browse on leaves and other vegetation. It was a relatively agile dinosaur, capable of running quickly to evade predators.
Project
- Draw a picture of Dryosaurus.
- Overview
- X-Ray

Location
| Confirmed | North America, Europe |
Fun Facts
- The name Dryosaurus means “tree lizard” from Greek.
- It was a member of the hadrosaur family, which are often called “duck-billed dinosaurs” because of their flat, duck-like snouts.
- It was a very fast runner, which helped it escape from predators.
- Dryosaurus lived in North America during the Late Jurassic period, which was about 150 million years ago.
Past Lessons
| 168 | October 7, 2024 | (North America) |
