Arctic Gives Clues on Worst Mass Extinction of Life

Arctic Gives Clues on Worst Mass Extinction of Life

Arctic gives clues on worst mass extinction of life
University of Tromso (Universitetet i Tromsø - UiT)
August 24, 2016
https://www.sciencedaily.com/releases/2016/08/160824111100.htm
http://phys.org/news/2016-08-arctic-clues-worst-mass-extinction.html

Grasby, S. E., B. Beauchamp, and J. Knies, 2016, Early Triassic
productivity crises delayed recovery from world’s worst mass
extinction. Geology. vol. 44, no. 9, pp. 779-782 DOI: 10.1130/G38141.1
http://geology.gsapubs.org/content/early/2016/08/05/G38141.1.abstract
ftp://rock.geosociety.org/pub/reposit/2016/2016263.pdf

An interesting, but unrelated paper is;

Hull, P. M., S. A. F. Darroch, and D. H. Erwin, 2015,
Rarity in mass extinctions and the future of ecosystems.
Nature. vol. 528, pp. 345-351.
http://people.earth.yale.edu/sites/default/files/files/Hull/Hulletal_nature_15.pdf

Yours,
Paul H.