(250111) -- BEIJING, Jan. 11, 2025 (Xinhua) -- This image provided by Xing Lida, an associate professor at the China University of Geosciences Beijing, shows a depiction of sauropod dinosaurs based on the fossilized tracks they had left in Qamdo, southwest China's Xizang Autonomous Region. Chinese scientists on Friday announced their discovery of two dinosaur track sites in southwest China's Xizang Autonomous Region, including one containing the world's smallest fossilized sauropod footprint, which dates back over 166 million years. TO GO WITH "Across China: World's smallest fossilized sauropod footprint found in Xizang" (Xinhua)