Question

Question 10(Multiple Choice Worth 7 points)

Answer 1

Organisms that existed over a limited period

Explanation:

Index fossils are organisms that existed within a limited period in the geologic record.

These fossils are indicator fossils that serves as guide to define the relative ages of rocks in a sequence.

Here are some characteristics of index fossils:

• they must have existed over a limited period in their history.
• they must be very distinctive with short evolutionary tend.
• they must be abundant and highly widespread in the stratigraphic column.

Learn more:

Fossils brainly.com/question/7382392

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