April 30, 2017 1244 GMT
The tracks were found on a rural mountain road in Longjing City in the Korean Autonomous Prefecture of Yanbian, Jilin, in August 2015, news.xinhuanet.com reported.
Xing Lida, associate professor from China University of Geosciences, said, "The tracks include footprints of hadrosaurs that are 55 centimeters long. The trackmaker's body could have reached seven meters long."
Several tracks of carnivorous dinosaurs were also discovered with various footprint sizes ranging from 43 to 21 centimeters.
The discovery will help with research to understand the region's landscape during the Cretaceous period.