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Stegosaurus stenops is one of the most easily recognized dinosaurs, with the raised flat plates on its back and prominent spikes at the end of its tail. S. stenops lived in the Late Jurassic, approximately 157 to 145 million years ago. It was a large herbivorous land animal, reaching 6.5 m long and weighing approximately 3500 kg. Though Stegosaurus have been traditionally interpreted with a quadrupedal gait (on all fours), it is possible that they could have slowly walked on its hind legs, or reared back on its hind legs for feeding (1). S. stenops is well-represented in the fossil record compared to other Stegosaurus species. Both adults and juveniles have been found, including a complete adult articulated skeleton, with bones preserved in the same position as when the animal was alive. Many more partial skeletons have been discovered, providing many samples for paleontologists to study (2).