1. State Key Laboratory of Geological Processes and Mineral Resources, and School of Earth Science and Resources China University of Geosciences (Beijing) Beijing China
2. State Key Laboratory of Palaeobiology and Stratigraphy Chinese Academy of Sciences Nanjing China
3. Center for Excellence in Life and Paleoenvironment Nanjing Institute of Geology and Palaeontology Chinese Academy of Sciences Nanjing China
4. Department of Geological Sciences Jackson School of GeosciencesUniversity of Texas Austin TX USA
5. Institute for Geophysics Jackson School of Geosciences University of Texas Austin TX USA