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Pa·le·o·cene
 Paleocene
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- pronunciation:
- peI
li
sin
[or]
pae
li
sin
- parts of speech:
- adjective, noun
| part of speech: |
adjective |
| definition: |
of, relating to, or designating the geological epoch at the start of the Tertiary Period, from approximately 65 million to 54 million years ago, when birds and early mammals appeared.
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| part of speech: |
noun |
| definition: |
the Paleocene Epoch, or the rock formations that date from that time.
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