Trilobites were animals that lived in the ocean between 520 million and 540 million years ago. A trilobite fossil can be used as an index fossil. What can a scientist learn from a trilobite fossil found in a layer of rock?

A. That no other types of fossils will be found in the area

B. The temperature of the trilobite when it became a fossil

C. The age of the layer of rock the trilobite fossil was found in

D. That the area near the fossil was always dry land

A scientist learns from a trilobite fossil found in a layer of rock that the age of the layer of rock the trilobite fossil was found in. Thus the correct answer is C.

What is a fossil?

Fossils are the traces or composition of ancient organisms which got buried after dumping in soil or sediments. To be considered a fossil it must be buried and leave an impression before getting decomposed.

Trilobites were animals that lived in the ocean between 520 million and 540 million years ago. They can be utilized as index fossils to define geological time periods.

Scientists learn from a trilobite fossil found in a layer of rock as the age of the layer of rock the trilobite fossil was found in by conducting research and evaluating facts.

Therefore, option C The age of the layer of rock the trilobite fossil was found in is the appropriate answer.

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