1. CNRS; UMR 8198-Evo-Eco-Paleo; Université de Lille; F-59000 Lille France
2. British Geological Survey; Keyworth Nottingham NG12 5GG UK
3. Nanjing Institute of Geology and Palaeontology; Chinese Academy of Sciences; 39 East Beijing Road Nanjing 210008 China
4. Naturmuseum Südtirol/Museo di Scienze Naturali dell'Alto Adige; Bindergasse/Via Bottai 1 I-39100 Bozen, Bolzano Italy
5. IANIGLA-CCT-CONICET-Mendoza; C.C. 131 5500 Mendoza Argentina
6. Biostratigraphy Group; Geological Technical Services Division; Saudi Aramco; E-4000-B, EXPEC II Building Dharan 31311 Saudi Arabia
7. School of Geosciences and Info-Physics; Central South University; Changsha 410083 China
8. State Key Laboratory of Palaeobiology and Stratigraphy; Nanjing Institute of Geology and Palaeontology; Chinese Academy of Sciences; Nanjing 210008 China