Oranepat Oranepat

27-09-2018
Biology

contestada

when did arundant fossil evidence first appear in the geologic record

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HaiseandSasaki HaiseandSasaki

27-09-2018

540 million years ago

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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