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Which of the following would be a good example of an index fossil? *

A plant species that lived only in the Amazon Rainforest for 30 million years
A species of lizard found in the Sonoran Desert that lived for 3 million years
A species of dinosaur that lived across all of Pangaea for 50 million years
A species of fish that lived at the bottom of the Pacific Ocean for 150 million years


Sagot :

Answer:

The last one is correct

Explanation:

..............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................the last answer choice is correct