In pics: China's top 10 archaeological discoveries of 2017

File photo shows a stone tool assemblage unearthed from Tongtiandong cave site in northwest China's Xinjiang Uygur Autonomous Region. It is the first Paleolithic cave site found in Xinjiang. Chinese archaeologists have selected the top 10 archaeological discoveries in China in 2017, which were published by the China Archaeological Society and a newspaper sponsored by the State Administration of Cultural Heritage on Tuesday. (Xinhua)