1 State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Beijing 100083, China; School of the Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China.
2 Yunnan Key Laboratory for Palaeobiology, Institute of Palaeontology, Yunnan University, Kunming 650500, China; MEC International Joint Laboratory for Palaeobiology and Palaeoenvironment, Yunnan University, Kunming 650500, China. Electronic address: yu.liu@ynu.edu.cn.
3 Royal Saskatchewan Museum, Regina, Saskatchewan S4P 4W7, Canada; Biology Department, University of Regina, Regina, Saskatchewan S4S 0A2, Canada; Department of Ecology and Evolutionary Biology, University of Kansas, Lawrence KS 66045, USA.
4 Museum of Comparative Zoology, Department of Organismic and Evolutionary Biology, Harvard University, Cambridge MA 02138, USA; Department of Earth & Planetary Sciences, Yale University, New Haven CT 06520-8109, USA; Smithsonian Tropical Research Institute, Balboa-Ancon 0843-03092, Panama.
5 Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China.
6 University of Chinese Academy of Sciences, Beijing 100049, China.
7 Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China; University of Chinese Academy of Sciences, Beijing 100049, China.
8 State Key Laboratory of Palaeobiology and Stratigraphy, Center for Excellence in Life and Paleoenvironment, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, China; Centre de Recherche en Paléontologie, Sorbonne Université, Muséum national d'Histoire naturelle, Paris F-75005, France. Electronic address: audo@nigpas.ac.cn.