| Class: | Reptile |
| Origin: | North America (Utah, Wyoming, and Dinosaur Ridge, Colorado), western Europe, southern India, China, and southern Africa |
| Size: | 26-30 feet long (8-9 m), about 9 feet tall (2.75 m) |
| Weight: | 6,800 pounds (3100 kg) |
| Diet: | only plants |
| Lifespan: | 75-100 years |
| Series: |  |
Stegosaurus had 17 bony plates that were embedded in its back.
Stegosaurus had a very tiny brain - it was only the size of a walnut.
Stegosaurus had spikes at the end of its flexible tail (these are called thagomizers).
Researchers believe that due to the nature of Stegosaurus legs, they had a maximum speed of around 7kph (5mph).
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