1. Wuhan Center of China Geological Survey (Wuhan Institute of Geology & Mineral Resources), Wuhan, China
2. Natural History Museum of Denmark, University of Copenhagen, Copenhagen, Denmark
3. Institute of Geology, Free University of Berlin, Germany
4. Dipartimento di Scienze della Terra, Via S. Maria 53, I-56126 Pisa, Italy
5. State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, 39 East Beijing Road, Nanjing, 210008, China
6. AO ‘Geologorazvedka’. Fayansovaya Stra 20, building 2, lti. A, St-Petersburg, 192019, Russia