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Scientists estimate that if index fossils were deposited during a certain time frame, then the entire rock layer was also deposited at the same time.

A scientist finds Trophite fossils. According to the chart above, in what era and period was this rock layer deposited?

Scientists estimate that if index fossils were deposited during a certain time frame-example-1
User RickN
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Answer:

Option No.2

Mesozoic Era

Triassic Period

User Nathan Gonzalez
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