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Paleozoic Era ran from about 542 million years ago to 251 millions years ago.

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Vita Kulas

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4y ago
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11y ago

The Precambrian Super-Eon lasted from the formation of Earth 4,567 million years ago until the start of the Pharerozoic Eon 542 million years ago.

It lasted 4.025 billion years. 90% of Earth's history. :)

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15y ago

The Prehistoric era lasted 14,999,999,591 years.It was from 15,000,000,000 BC to 409 BC.

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13y ago

The Precambrian spans roughly 4 billion years.

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11y ago

the Mesozoic era lasted approximately 180 years.

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Q: How long was the prehistoric era?
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