The Maastrichtian Epoch is the last time division of the Cretaceous period. It is a geological period.
The Cretaceous Period, represent the last of the three periods that occurred during the Mesozoic Era.
The Maastrichtian Epoch can be considered the last period of the Cretaceous geological time.
This period (Cretaceous period) began approx. 150 million years (Mya) ago and ended 60 million years ago.
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