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When did the Early Cretaceous Epoch begin and end?
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Cretaceous Period
Distribution of landmasses, mountainous regions, shallow seas, and deep ocean basins during the late Cretaceous Period. Included in the paleogeographic reconstruction are the locations of the interval's subduction zones.
The Early Cretaceous Epoch began 145 million years ago and ended 100.5 million years ago. It represents the first of two epochs within the Cretaceous Period, which spanned from 145 million to 66 million years ago.12