jan 1, 145500000 BC - Beginning:
The Cretaceous Period
Description:
The Cretaceous is usually noted for being the last portion of the "Age of Dinosaurs". This period was known to be from 145.5 million years ago to 65.5 million years ago.
LINK:
http://www2.humboldt.edu/natmus/lifeThroughTime/Cretaceous.web/index.htm
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