CAS Key Laboratory of Economic Stratigraphy and Palaeogeography;
Nanjing Institute of Geology and Palaeontology Chinese Academy of Sciences;
Nanjing;
Jiangsu 210008;
China;
University of Chinese Academy of Sciences;
Bejing 100049;
China;
State Key Laboratory of Palaeobiology and Stratigraphy;
Nanjing Institute of Geology and Palaeontology;
Chinese Academy of Sciences;
Nanjing;
Jiangsu 210008;
China;
University of Science and Technology of China;
Hefei 230026;
China;
plankton; nekton; ecosystem; origination; Ordovician; Furongian;