To be a useful index fossil, a species must have been rare.

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Geography

Garfield

25 February, 07:42

To be a useful index fossil, a species must have been rare.

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Cuddle Pig · Answer 1

This statement is false.

In order to be a useful index fossil, the fossil needs to be common so that they can be found in different sediments and therefore serve as an index. They also need to be easy to identify and be broadly distributed. If fossils don't have these characteristics, it is hard to find them and recognise them in two different sediments.