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How long are eras?

Updated: 8/11/2023
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6y ago

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The geologic time scale refers to measuring the layers of the earth's crust according to what time in history they refer to. In order, the eras from the Precambrian to the present are as follows: Neoarchean, Paleoarchean, Mesoarchean, Neoarchean, Paleoproterozoic, Mesoproterozoic, Neoproterozoic, Paleozoic, Mesozoic, and Cenozoic.

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9y ago
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14y ago

Geologic periods.

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11y ago

by separating lands.

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13y ago

periods

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