This CGI drawing shows the possible appearance of Yangchuanosaurus, a dinosaur from the late Jurassic Period (around 157 million years ago) that may have been up to 10 metres (33 feet) in length. Yangchuanosaurus was a Theropod dinosaur that lived in China. The first fossil skeleton of Yangchuanosaurus was found in the Yongchuan District of China in 1977.