135k views
1 vote
What are index fossiles and how can they be used to correlate rock layers found large distances apart?



User Gringo
by
4.9k points

1 Answer

3 votes

Answer:

Ammonites, trilobites, and graptolites are often used as index fossils. Microfossils, which are fossils of microscopic organisms, are also useful index fossils.

Step-by-step explanation:

User Eels Fan
by
5.4k points