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Cretaceous-Tertiary Mass Extinction (view source)
Revision as of 14:27, March 29, 2007
, 14:27, March 29, 2007add 2 sentences at the top - "generally believe"
Biologists and geologists generally believe that a mass extinction of dinosaurs happened 65 million years ago at the end of the [[Cretaceous Period]].
One explanation suggested was that it was the result of a meteor impact, but this idea was challenged on the grounds that no crater had been found.
A Meteor Impact which scientists claim occurred about Scientists theorize it resulted in the extinction of all non-avian [[dinosaurs]].