Global Geology     2017 20 (1):  14-20    ISSN: 1673-9736:  CN: 22-1371/P Survey and establishment of Nanshimenzi Bed of Tiaojishan Formation in Qinglong, northern Hebei, China WANG Shiying1, ZHAO Cuilin1, ZHU Zhipeng1, ZHANG Lijun1, HU Dongyu1,2 1. Paleontological Institute, Shenyang Normal University, Shenyang 110034, China; 2. Key Laboratory for Evolution of Past Life in Northeast Asia, Ministry of Land and Resources(Shenyang Normal University), Shenyang 110034, China Received 2016-12-22  Revised 2017-01-25  Online 2017-03-25 Reference   Corresponding author: HU Dongyu