Proposed GSSP for the base of Cambrian Stage 7, coinciding with the first appearance of Lejopyge laevigata, Hunan, China
Shanchi Peng, Loren Edward Babcock, Jingxun Zuo, Lin Huanling, Xuejian Zhu, Xianfeng Yang, Richard A. Robison, Yuping Qi, Gabriella Bagnoli, Yong-An Chen
Abstract