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The Age of Dinosaurs ended roughly 65 million years ago with the K-T or Cretaceous-Tertiary extinction event, which killed off all dinosaurs save those that became birds, as well as roughly half of all species on the planet, including pterosaurs. The prime suspect in this ancient murder mystery is an asteroid or comet impact, which left a vast crater at Chicxulub on the coast of Mexico.

Another leading culprit is a series of colossal volcanic eruptions that occurred between 63 million to 67 million years ago. These created the gigantic Deccan Traps lava beds in India, whose original extent may have covered as much as 580,000 square miles, or more than twice the area of Texas.

Arguments over which disaster killed the dinosaurs often revolve around when each happened and whether extinctions followed. Previous work had only narrowed the timing of the Deccan eruptions to within 300,000 to 500,000 years of the extinction event.

Now research suggests the mass extinction happened at or just after the biggest phase of the Deccan eruptions, which spewed 80 percent of the lava found at the Deccan Traps.

http://news.aol.com/story/_a/did-one-two-punch-kill-dinosaurs/20071113094309990002?ncid=NWS00010000000001#cmntbgn

Reminds me sooooo much of global warming there was a consensus it changes but everyone who disagrees it a heretic.

First the ice age then an asteroid then volcanoes next we will find they all had HIV,