Name two index fossils. Why are these fossils important to the practice of relative aging?

asked Oct 25, 2018 25.7k views

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2 votes

Answer:

(I will name a couple for you to use)

Ammonites, corals, graptolites, brachiopods, trilobites, and echinoids

Rubiojr answered Oct 26, 2018

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dinosaur and bird so u can see how they developed and how they aged to become something popular

Andigor answered Oct 30, 2018

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