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UkoKoshka [18]
3 years ago
15

When did arundant fossil evidence first appear in the geologic record

Biology
1 answer:
Delvig [45]3 years ago
7 0
<h2>540 million years ago </h2>

Paleozoic.

Era immediately follows Precambrian It lasted about 4.5 billion years.

When did abundant fossil evidence first appear in the geologic record.

540 million years ago.

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