1. CAS Key Laboratory of Economic Stratigraphy & Palaeogeography; Nanjing Institute of Geology & Palaeontology, Centre for Excellence in Life & Paleoenvironment; Chinese Academy of Sciences; 39 East Beijing Road Nanjing 210008 China
2. Nanjing Institute of Geology & Palaeontology, Centre for Excellence in Life & Paleoenvironment; Chinese Academy of Sciences; 39 East Beijing Road Nanjing 210008 China
3. State Key Laboratory of Palaeobiology & Stratigraphy; Nanjing Institute of Geology & Palaeontology, Center for Excellence in Life & Paleoenvironment; Chinese Academy of Sciences; 39 East Beijing Road Nanjing 210008 China
4. State Key Laboratory of Biogeology & Environmental Geology; China University of Geosciences; Beijing 100083 China
5. Departament de Dinàmica de la Terra i de l'Oceà; Facultat de Ciències de la Terra; Universitat de Barcelona; Barcelona 08028 Catalonia Spain