No, it only finished them off.(BUTTING HEADS: Were Dinosaurs the Victims of a Single Catastrophe?)

Publication: Natural History

Publication Date: 01-MAY-05

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COPYRIGHT 2005 Natural History Magazine, Inc.

Some 65 million years ago, Murphy's Law applied--almost everything that could have gone wrong did: A huge bolide, or asteroid, struck Earth. Globally, the seas receded. Fissures on the Indian subcontinent spewed forth thousands of cubic kilometers of material. All three events took place in rapid succession, toward the end of the Cretaceous period. Each of them is thought to have been the largest event of its kind in the past 250 million years, and each is thought to have played a role in the demise of the nonbird dinosaurs. Each event left obvious physical and chemical...

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