1. State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology and Center for Excellence in Life and Paleoenvironment, Chinese Academy of Sciences, 39 East Beijing Road, Nanjing 210008, China.
2. University of Sciences and Technology of China, Hefei 230026, China.
3. Shandong Provincial Key Laboratory of Depositional Mineralization and Sedimentary Minerals, Shandong University of Science and Technology, Qingdao, Shandong 266590, China.
4. Paleontological Institute, Russian Academy of Sciences, Profsoyuznaya ul. 123, Moscow, 117997 Russia.
5. Changzhou Vocational Institute of Engineering, No. 3 Gehu Road, Changzhou 213164, China.
6. Division of Entomology, Natural History Museum, 1501 Crestline Drive, Suite 140, University of Kansas, Lawrence, KS 66045, USA.
7. Department of Ecology and Evolutionary Biology, University of Kansas, Lawrence, KS 66045, USA.
8. Division of Invertebrate Zoology, American Museum of Natural History, New York, NY 10024-5192, USA.