Stegosaurus from AMNH

Stegosaurs were a genus of ornithischian ("bird-hipped") dinosaurs. There are sevaral known species in the genus, including S. armatus, S. stenops, S. sulcatus, S. longspinus, and the type species, S. armatus. Stegosaur species bore large, distinctive plates protruding from their backs, and spikes on the ends of their tails. While the spikes were likely used for defense, the plates have been subject to a great deal of speculation, with proposed functions including defense and thermoregulation. Although their feeding and diet are not very well-understood, Stegosaurs are known to have had unusual small, peg-shaped teeth that show horizontal wear-marks, suggesting they may have fed by "raking" leaves from branches of the low-lying plants they could reach with their short necks. Stegosaur species have been found in upper Jurassic rocks, from 155 to 150 million years ago.
This digital 3D model is a scan of an object found in the American Museum of Natural History. The original object wa