How did geologists decide where one division of the geologic time scale ends and the next begins?

The Law of Superpostion

Events in the history of life on Earth, like mass extinctions

They divided the time equally between eras

The placement of fossils throughout the surface layers of Earth

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Rebecca Delacruz

5 February, 17:08

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Know the Answer?

Irvin Compton · Answer 1

The placement of fossils throughout the surface layers of Earth.

Violet Valdez · Answer 2

Answer:The placement of fossils throughout the sruface layers of earth

How did geologists decide where one division of the geologic time scale ends and the next begins?The Law of SuperpostionEvents in the history of life on Earth, like mass extinctionsThey divided the time equally between erasThe placement of fossils throughout the surface layers of Earth