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E·o·cene
 Eocene
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- pronunciation:
- i
sin
- parts of speech:
- adjective, noun
part of speech: |
adjective |
definition: |
of, relating to, or designating the geological epoch between the Paleocene and Oligocene of the Tertiary Period, from approximately 54 million to 38 million years ago, when modern mammals became dominant.
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part of speech: |
noun |
definition: |
the Eocene Epoch, or the rock formations that date from that time.
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