Silurian Extinction

[Scylla]

Studying multiple oxygenation proxies leads to conclusion that over 20 % of marine life was wiped out by loss of oxygenation in the oceans at the end of the Silurian

 

https://m.phys.org/news/2019-08-oxygen-depletion-ancient-oceans-major.html

[Oxytropidoceras]

The paper is:

 

Bowman, CN, Young, SA, Kaljo, D, Eriksson, ME, Them II, 

TR, Hints, O, Martma, T, Owens, JD, 2019, Linking the 

progressive expansion of reducing conditions to a stepwise 

mass extinction event in the late Silurian oceans. Geology,

 in press, doi.org/10.1130/G46571.1

https://pubs.geoscienceworld.org/gsa/geology/article-abstract/573358/linking-the-progressive-expansion-of-reducing

https://www.sethallenyoungphd.com/publications.html

 

Related papers are:

 

Calner, M., 2008. Silurian global events–at the tipping point of

climate change. In Mass extinction (pp. 21-57). Springer, Berlin, 

Heidelberg.

https://www.researchgate.net/publication/228769324_Mass_Extinction

https://www.researchgate.net/profile/Mikael_Calner

 

and

 

Young, S.A., Kleinberg, A. and Owens, J.D., 2019. Geochemical 

evidence for expansion of marine euxinia during an early Silurian 

(Llandovery–Wenlock boundary) mass extinction. Earth and 

Planetary Science Letters, 513, pp.187-196.

https://www.sethallenyoungphd.com/publications.html

https://www.sethallenyoungphd.com/uploads/8/5/6/5/85653054/young_et_al_2019_ireviken.pdf

 

Yours,

 

Paul H.