About the Authors

Hui Shen

Affiliations Key Laboratory of Vertebrate Evolution and Human Origin of Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, China, Department of Earth Science, University of Chinese Academy of Sciences, Beijing, China

Xinhua Wu

Affiliation The Institute of Archaeology, Chinese Academy of Social Sciences, Beijing, China

Zihua Tang

Affiliation Key laboratory of Cenozoic Geology and Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China

Xinying Zhou

Affiliation Key Laboratory of Vertebrate Evolution and Human Origin of Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, China

Nan Sun

Affiliation Department of earth science and resources, Chang’an University, Shaanxi, China

Xiaoqiang Li

lixiaoqiang@ivpp.ac.cn

Affiliation Key Laboratory of Vertebrate Evolution and Human Origin of Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: HS NS XZ. Performed the experiments: HS NS. Analyzed the data: XL HS. Contributed reagents/materials/analysis tools: XW ZT. Wrote the paper: HS XL. Archaeological excavation: ZT XW.