It is debated what Stegosaurus used its plates for. Some believed they were used for defense, however, the plates are very thin and have blood vessels running through them, which would not make them ideal for that use.
Got more questions? Text 844-DINO-411 for more info!
What It Eats
Herbivore (plant eater)
How Big It Is
26-30 feet long, 3 tons
Where It Lived
Colorado, Utah, Wyoming, USA, North America
When It Lived
155 - 145 Million Years Ago
The most likely use of the Stegosaurus' plates were for display or possibly a combination of protection or other uses.