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The Cretaceous Period: What was Earth like before dinosaurs went extinct?
The Cretaceous is split into two smaller time periods called epochs. The Early Cretaceous Epoch lasted from 145 million years ago to 100.5 million years ago and the Late Cretaceous Epoch lasted from ...
Phys.org on MSN9d
Cretaceous fossil from Antarctica reveals earliest modern bird
Sixty-six million years ago, at the end of the Cretaceous Period, an asteroid impact near the Yucatán Peninsula of Mexico ...