The most-studied mass extinction in Earth history happened 65 million years ago and is widely thought to have wiped out the dinosaurs. New research indicates that a separate extinction came shortly before that, triggered by volcanic eruptions that warmed the planet and killed life on the ocean floor. This research was undertaken by ESS‘ Thomas Tobin, Peter Ward, Eric Steig and others. Read more about this exciting new finding!
Dinosaur die-out might have been second of two closely-timed extinction events – UW News
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