Potential global stratotype sections and points in China for defining Cambrian stages and series

摘要: Abstract Three stratigraphic sections in the Cambrian of China that contain complete successions across important biohorizons having chronostratigraphic value, and may be useful for developing stage or series boundaries, are reviewed. The Wuliu section (Guizhou, South China), contains FAD Oryctocephalus indicus at 58.2 m above base Kaili Formation. Wangcun North (Hunan, FADs Ptychagnostus (or Acidusus ) atavus, punctuosus , Lejopyge laevigata 1.2 m, 56.7 m, 111.3 m, respectively, Huaqiao Xiaoyangqiao (Jilin, Northeast Cordylodus proavus Fengshan Formation 10.89 m zero point section. A fourth potential stratotype section, which P. L. zones, is discussed briefly.