How is an index fossil like a key bed?

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asked Mar 2, 2023 207k views

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Grant Johnson · Answer 1 · 2023-03-07T00:44:26+0000

Answer: A key bed can be used like an index fossil since a key bed is a distinctive layer of rock that can be recognized across a large area. A volcanic ash unit could be a good key bed.

How is an index fossil like a key bed?

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