Photo taken on Dec. 7, 2017 shows the exhibition hall of the Zigong Dinosaur Museum in Zigong, southwest China's Sichuan province. Built at the world-famous Dashanpu Dinosaur Fauna, Zigong Dinosaur Museum has a collection of fossil specimens almost including all the known dinosaur species in the Jurassic of 205-135 million years ago. It was regarded as 'the best dinosaur museum in the world' by American Global Geography Magazine. (Xinhua/Liu Kun)

People visit the Zigong Dinosaur Museum in Zigong, southwest China's Sichuan province, Dec. 7, 2017. Built at the world-famous Dashanpu Dinosaur Fauna, Zigong Dinosaur Museum has a collection of fossil specimens almost including all the known dinosaur species in the Jurassic of 205-135 million years ago. It was regarded as 'the best dinosaur museum in the world' by American Global Geography Magazine. (Xinhua/Liu Kun)