1. State Key Laboratory of Lithospheric Evolution; Institute of Geology and Geophysics, Chinese Academy of Sciences; Beijing China
2. Department of Earth, Atmospheric and Planetary Sciences; Massachusetts Institute of Technology; Cambridge Massachusetts USA
3. Institute of Paleontology, Shenyang Normal University; Shenyang China
4. Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences; Beijing China