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Trilobites are index fossils because they

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Trilobites are index fossils because they

asked Nov 12, 2018 32.9k views

3 votes

Trilobites are index fossils because they

Geography
high-school

by Yazaki

8.1k points

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1 Answer

5 votes

Because they appeared quickly in geological time, and moulted like other arthropods, trilobites serve as excellent index fossils.

Jon Shadforth answered Nov 19, 2018

by Jon Shadforth

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