Freshwater Creatures Less Affected by K-Pg Asteroid Impact

Freshwater Creatures Less Affected by K-Pg Asteroid Impact

Freshwater Creatures Less Affected by Dino-Killing
Asteroid, National Geographic, July 23, 2013
http://news.nationalgeographic.com/news/2013/07/130723-chicxulub-asteroid-dinosaurs-freshwater-survival-extinction/

A field guide to surviving a mass extinction
by John Timmer, Ars Technica, July 21, 2013
http://arstechnica.com/science/2013/07/a-field-guide-to-surviving-a-mass-extinction/

Robertson, D. S., W. M. Lewis, P. M. Sheehan,
and O. B. Toon, 2013, K-Pg extinction patterns
in marine and freshwater environments: The
impact winter model. Journal of Geophysical
Research: Biogeosciences Article first published
online: 11 JUL 2013 DOI: 10.1002/jgrg.20086
http://onlinelibrary.wiley.com/doi/10.1002/jgrg.20086/abstract

Yours,
Paul H.