Difference between revisions of "Cretaceous-Tertiary Mass Extinction"
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| − | + | Evolutionary 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. | 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. | ||
Revision as of 14:30, March 29, 2007
Evolutionary 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.
External links
- The K-T Event - NASA's Jet Propulsion Laboratory