Coordinates: Wangjiawan (Chinese: 王家湾村; pinyin: Wangjiawan cun) is a village in the municipality of Fenxiang Town (Chinese: 分乡镇; pinyin: Fenxiang zhen) and part of the Yiling District (Chinese: 夷陵区), which itself is a part of the Yichang (Chinese: 宜昌市) of Hubei province.
- "GSSP Table - Paleozoic Era". Geologic TimeScale Foundation. Retrieved 24 November 2012.
- Chen, Xu; Jiayu Rong, Junxuan Fan, Renbin Zhan, Charles E. Mitchell, David A. T. Harper, Michael J. Melchin, Ping'an Peng, Stan C. Finney, Xiaofeng Wang (2006). "The Global Boundary Stratotype Section and Point (GSSP) for the base of the Hirnantian Stage (the uppermost of the Ordovician System)". Episodes 29 (3): 183–196. Retrieved 20 September 2012.