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MrMuchimi
3 years ago
13

What makes a fossil an index fossil

Biology
2 answers:
Marina CMI [18]3 years ago
8 0
Well fossils can tell you a lot about the age of the rock it was found in, and an index fossil are used to used to define periods of geologic time.
soldier1979 [14.2K]3 years ago
8 0

A fossil found in rocks from one time period. (apex)

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