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Pa·le·o·zo·ic
 Paleozoic
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- pronunciation:
- peI
li
zo
ihk
[or]
pae
li
zo
ihk
- features:
- Word Combinations (adjective), Word Explorer, Word Parts
| part of speech: |
adjective |
| definition: |
of, relating to, or belonging to the era in the earth's history from about 540 million years ago to about 250 million years ago. During this time, the first fishes, amphibians, reptiles, insects, and land plants appeared.
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