Stegosaurus


Stegosaurus ("plated lizard") was equipped with a double row of bony plates along its back and large, sharp spines on its tail. The plates are usually thought of as armor, but we do not know exactly how they were used. If they were arranged standing up or lying flat, there would still have been large parts of the animal left unprotected. It is possible that the plates were intended for some purpose other than protection.