Beigong Village in Yunling Town, Jingxian County, Anhui Province (118.437, 30.688, Gaojiabian Formation)
Li, J.J. 1984. Graptolites Across the Ordovician—Silurian Boundary from Jingxian, Anhui. 309-388. In Nanjing Institute of Geology and Palaeontology, Academia Sinica (ed.). Stratigraphy and palaeontology of systemic boundaries in China, Ordovician-Silurian boundary 1. Anhui Science and Technology Publishing House, Hefei, 516 pp.