摘要
1 Introduction As one of the major zooplanktonic organisms in the Ordovician and Silurian marine ecosystems,graptolites played a unique role in the GOBE(Great Ordovician Biodiversification Event)and underwent a considerable variation of diversities both in lifestyle and in speciation through the Ordovician(Sadler et al.,2011;Cooper et al.,2014).
基金
funded by the financial support from the National Natural Science Foundation of China(Grant No.41772005)
the Chinese Academy of Sciences(Grant Nos.XDB10010100,XDB26000000)
the Ministry of Science and Technology of China(Grant Nos.2013FY111000,2017ZX05036-001-004)
IGCP Project 653’The Onset of the Great Ordovician Biodiversification Event’.