Why Are Index Fossils Index Fossils? | Trilobites Are Index Fossils Because They ____

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Trilobites Are Index Fossils Because They ____ | Why Are Trilobites An Index Fossil?

Why are trilobites an index fossil? Trilobites are excellent index fossils because they evolved rapidly and molted like other arthropods. This means that they changed… Read More »Trilobites Are Index Fossils Because They ____ | Why Are Trilobites An Index Fossil?