World 's most complete stegosaurus skeleton unveiled at Natural History Museum . At 5.6m long and 2.9m tall , the Stegosaurus stenops is roughly the size of a 4x4 vehicle -- though it predated such motors by 150 million years . Skeleton is 5.6 m long and made up of more than 300 bones , 19 plates and 4 spikes . Found at Red Rock Ranch in Wyoming , USA , in 2003 , moved to China in 2013 . Stegosaurus inhabited the world 156 to 144 million years ago , in late Jurassic period .
World 's most complete stegosaurus skeleton unveiled at Natural History Museum . Skeleton is 5.6 m long and made up of more than 300 bones , 19 plates and 4 spikes . Found at Red Rock Ranch in Wyoming , USA , in 2003 , moved to China in 2013 . Stegosaurus inhabited the world 156 to 144 million years ago , in late Jurassic period .