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Pls help! Will mark brainliest!

To be considered _____ they must have lived over a very short period of time and had to be many of them.

A) An index fossil
B) A trace fossil
C) A petrified fossil
D) A carbon fossil

Respuesta :

Answer:

A) Index Fossils

Explanation:

Index fossils are fossils used to define and identify geologic periods. Index fossils must have a short vertical range, wide geographic distribution and rapid evolutionary trends.

cmorgan48
your answer is....
A) index fossils
please mark Brainliest!!!!