1. Key Laboratory of Vertebrate Evolution and Human Origins, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing 100044, China.
2. Henan Provincial Institute of Cultural Relics and Archaeology, Zhengzhou 450000, China.
3. Laboratory for Earth Surface Processes, Department of Geography, Peking University, Beijing 100871, China.
4. University of the Chinese Academy of Sciences, Beijing 100049, China.
5. State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, China.
6. Department of Anthropology, Washington University, St. Louis, MO 63130, USA.