1. State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, China.
2. Steinmann Institute, University of Bonn, 53115 Bonn, Germany.
3. Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China.
4. Nanjiao Bieshu 394, Shanghai 201108, China.
5. Division of Entomology, Natural History Museum and Department of Ecology and Evolutionary Biology, University of Kansas, Lawrence, KS 66045, USA.
6. CNRS UMR 6118 Géosciences and OSUR, Université de Rennes 1, 35042 Rennes, France.
7. Institute of Geology and Paleontology, Linyi University, Linyi 276000, China.
8. Department of Earth Sciences, Natural History Museum, London SW7 5BD, UK.