Affiliation: | [1]SKL, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, 210008 Nanjing, PRC [2]Department of Geology, St. Francis Xavier University, Antigonish, NS, B2G 2W5 Canada [3]Petro-Canada Oil and Gas, 150 - 6th Avenue SW, Calgary AB, T2P 3E3 Canada [4]All Russian Geological Research Insfitute-VSEGEI, Sredny pr. 74, 199026, St. Petersburg, Russia [5]Research Unit Palaeontology, Ghent University, Krijgslaan 281/S 8, 2000, Ghent, Belgium |