Interesting facts about index fossils

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asked Mar 7, 2021 98.8k views

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Marian Zagoruiko · Answer 1 · 2021-03-09T02:28:43+0000

Index fossils are very important to relative dating, as they serve as great time markers because they have a short half-life and are widespread around the world.

Carl Rosenberger · Answer 2 · 2021-03-13T14:44:34+0000

Answer:

A good index fossil is one with four characteristics: it is distinctive, widespread, abundant and limited in geologic time. Because most fossil-bearing rocks formed in the ocean, the major index fossils are marine organisms, but certain land organisms are useful in young rocks and in specific regions.

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Interesting facts about index fossils

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