Hangenburg event
From Wikipedia, the free encyclopedia
The Hangenburg event was an anoxic period at the end of the Famennian epoch (late Devonian) associated with the Late Devonian extinction, marked by a black shale.
It has been suggested that is was caused by an increase in terrestrial plant cover.
==See also
[edit] References
Algeo TJ, Scheckler SE, Maynard JB (2001). "Effects of the middle to late Devonian spread of vascular land plants on weathering regimes, marine biotas, and global climate", Plants invade the land - evolutionary and environmental perspectives. New York: Columbia University Press, 213–36.
