Previously, footprints of these two types of dinosaurs were also found at a fossil site some 10 km away, offering concrete evidence that a large number of sauropods and theropods had been living around during the Mesozoic Era.
The place where the water ripple fossils were discovered was once a shallow lake, indicating that the Zhucheng area during the Mesozoic Era was densely vegetated and very suitable for the survival of dinosaurs, said Chen Shuqing from the center.
“At that time, the climate was dry and the lake was very shallow, and when the wind blew, imprints of water ripples were left on the lakeshore,” Chen added.
Rich in dinosaur fossil resources, Zhucheng is known as the dinosaur city of China. Since the 1960s, more than 30 dinosaur fossil burial sites have been discovered there, with a burial area of nearly 1,000 square km.