Correlating the global Cambrian–Ordovician boundary: Precise comparison of the Xiaoyangqiao section, Dayangcha, North China with the Green Point GSSP section, Newfoundland, Canada
Xiaofeng Wang, Svend Stouge, Jörg Maletz, Gabriella Bagnoli, Yuping Qi, Elena Raevskaya, Chuanshang Wang, Chun-Bo Yan
Abstract