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. Department of Earth Sciences, The University of Hong Kong, Hong Kong Special Administrative Region, China.
3. Institute of Exploration, Development and Research of PetroChina Company Limited Changqing Oilfield Branch, Xi’an SX 710018, China.
4. National Engineering Laboratory for Exploration and Development of Low-Permeability Oil and Gas Fields, Xi’an SX 710018, China.
5. Department of Earth Sciences, Natural History Museum, London SW7 5BD, UK.
6. Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, 1, Beichen West Road, Beijing 100101, China.