upper cretaceous (0 synonym found)

We don't have any synonyms for upper cretaceous yet.

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Definition of upper cretaceous:

°The geologic period within the Mesozoic era that comprises lower and upper epochs from about 146 to 65 million years ago.
Definition of upper cretaceous:

°The geologic period within the Mesozoic era that comprises lower and upper epochs from about 146 to 65 million years ago.
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