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Trilobites are index fossils because they ____. a. changed slowly through time c. exhibit specific characteristics b. lived over large areas of the world d. all of the above

Kevin Sutter

in Geography

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Jeremy Wood on February 12, 2018

The answer is "d. all of the above".Trilobites are index fossils because they "changed slowly through time , have specific characteristics he lived over large areas of the world."Trilobite fossils are found all over the world, with a huge number of known species. Since it appeared quickly in topographic time, and poured out as different arthropods, the trilobites fill amazing index fossil, the empowerment of the geologists to date the age the rocks in which they are found.

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