Department of Earth and Planetary Science, University of California, Berkeley, Berkeley, CA 94720, United States
State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, 210008, China
Berkeley Geochronology Center, 2455 Ridge Road, Berkeley, CA 94709, United States ; Department of Earth and Planetary Science, University of California, Berkeley, Berkeley, CA 94720, United States
State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, 210008, China