2012-09-10. Earlier Mass Extinction for Most of Marine Life |

posted Sep 11, 2012, 5:01 AM by Alan Gould
by Sindya Bhanoo, New York Times. An article relevant to GSS Life and Climate chapter 8. Excerpt:  Most scientists agree that dinosaurs became extinct as a result of a catastrophic meteor strike 65 million years ago near the Yucatán Peninsula. …But now scientists are suggesting that another mass extinction event occurred about 200,000 years earlier: a volcanic eruption on the Deccan Plateau of India. The eruption filled the atmosphere with aerosols — fine particles suspended in greenhouse gases that led to warming and, eventually, the extinction of much of marine life, especially shelled invertebrates on the ocean floor….. Read the full article: http://www.nytimes.com/2012/09/11/science/volcanic-eruption-may-have-caused-marine-life-extinction.html?ref=science