Major North American oil source yields clues to one of earth's deadliest mass extinctions
University of Maryland, March 8, 2023
[www.eurekalert.org]
[www.sciencedaily.com]

"Geologists studying the Bakken Shale Formation discovered a
critical kill mechanism behind a series of extinctions some 350
million years ago."

the paywalled paper is:

Sahoo, S.K., Gilleaudeau, G.J., Wilson, K., Hart, B., Barnes, B.D.,
Faison, T., Bowman, A.R., Larsen, T.E. and Kaufman, A.J., 2023.
Basin-scale reconstruction of euxinia and Late Devonian mass
extinctions. Nature, pp.1-6. Published Online March 8, 2023
[www.nature.com]

Yours,

Paul H.

"The past is never dead. It's not even past."
William Faulkner, Act 1, Scene III, Requiem for a Nun (1951)