1. School of Earth Sciences and Engineering, Nanjing University, Nanjing 210023, China.
2. LPS, Nanjing Institute of Geology and Palaeontology and Center for Excellence in Life and Paleoenvironment, Chinese Academy of Sciences, Nanjing 210008, China.
3. Key Laboratory of Continental Collision and Plateau Uplift, Institute of Tibetan Plateau Research and Center for Excellence in Tibetan Plateau Earth Sciences, Chinese Academy of Sciences, Beijing 100101, China.
4. Department of Paleobiology, National Museum of Natural History, Washington, DC 20013, USA.
5. Santa Fe Institute, Santa Fe, NM 87501, USA.
6. Department of Earth Sciences, University of California, Riverside, CA 92521, USA.
7. School of the Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China.