Gzhelian

The Gzhelian is the youngest stage of the Pennsylvanian. It is more or less coeval with the Stephanian Stage of the regional stratigraphy of Europe.

Type locality for the Gzhelian in Gzhel, Russia

References

1. "Chart/Time Scale". www.stratigraphy.org. International Commission on Stratigraphy.
2. Gradstein, F.M.; Ogg, J.G. & Smith, A.G.; 2004: A Geologic Time Scale 2004, Cambridge University Press