Key Information
Ceratosaurus
| Species | Ceratosaurus nasicornis |
| Diet | Carnivore |
| Length | 23 ft |
| Height | 6 ft |
| Weight | Possibly 1,500 lb |
| Timescale | Late Jurassic |
| Classification | Theropoda > Ceratosauridae |
| Similar Species | Megalosaurus |
Learning Point
- The Ceratosaurus was a medium sized theropod dinosaur that was about the same height as an adult human. It had an unusual horn and bony ridges above its eyes.
Project
- Draw a picture of Ceratosaurus with a brightly coloured nose horn.
- Overview
- X-Ray
- Skull
Location
| Confirmed | North America, Europe |
Fun Facts
- The name Ceratosaurus means “horn lizard” in Greek.
- The horn on its head was likely for display in some form.
- It was unusual among other theropods in that it had four fingers on its hands, though how big, and how many contained claws is unknown.
- It had osteoderms (skin bones) on its body, including along its spine, and in other places that we are less certain of
Past Lessons
| 83 | July 24, 2023 | (North America) |
| 196 | May 19, 2025 | (North America) |