Author Affiliations +
Ke-yi Hu,1,* Yu-ping Qi,2 Xiang-dong Wang1
1Center for Research and Education on Biological Evolution and Environment, and Frontiers Science Center for Critical Earth Material Cycling, Nanjing University, 163 Xianlin Avenue, Nanjing 210023, China <> <xdwang@nju.edu.cn>
2State Key Laboratory of Paleobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, and Center for Excellence in Life and Paleoenvironment, Chinese Academy of Sciences, 210008 Nanjing, China <>
*Corresponding author.