Location of the site and artifacts. (IMAGE) Chinese Academy of Sciences Headquarters Caption Location of the site and artifacts. (A) Location of Shangshan, Qiaotou, and Xiaohuangshan sites, along with the distribution of Shangshan culture. (B) Selected pottery fragments analyzed. (C) Corresponding complete vessels. Credit Image by IGG Usage Restrictions News organizations may use or redistribute this image, with proper attribution, as part of news coverage of this paper only. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.