Wangjiawan Explained

30.9722°N 111.4194°W Wangjiawan is a village in the municipality of Fenxiang Town and part of the Yiling District, which itself is a part of the Yichang of Hubei province.

Geology

The geologic outcrop, the "Wangjiawan section" it the official GSSP for the Hirnantian stage of the Upper Ordovician; it is located at 30.9822°N 111.4194°W.^{[1] [2]}

Notes and References

1. Web site: GSSP Table - Paleozoic Era. Geologic TimeScale Foundation. 24 November 2012.
2. 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. The Global Boundary Stratotype Section and Point (GSSP) for the base of the Hirnantian Stage (the uppermost of the Ordovician System). Episodes. 2006. 29. 3. 183–196. 10.18814/epiiugs/2006/v29i3/004 . 20 September 2012.