The first record of Cretaceous non–avian dinosaur tracks from the Qinghai-Tibet Plateau, China

A dinosaur track assemblage from a remote, high altitude (~4500–5000 m) site on the is the first to be reported from this area. The location, here named the Yangguang tracksite, represents the Lower Cretaceous part of the Kezilesu Group consisting of feldspathic sandstones and dated as Hauterivian–Barremian on the basis of the palynoflora. As the site is a dangerous working environment, with a steep (65°) track-bearing surface and constant...