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Which six ages make up the Late Cretaceous Epoch?
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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 Late Cretaceous Epoch is divided into six distinct ages. In chronological order, these are:
These ages correspond to the rock stages of the Upper Cretaceous Series, which were defined by geologists in the 19th century based on fossils and strata found in specific type areas across Europe.1