Question

What does the principle of faunal succession state?



1. Rock layers with the same unique grouping of fossils are of the same geologic age.



2. Absolute dating is required to determine the relative age of animals based on their fossils.



3. Fossils are deposited in approximately horizontal layers and spread out until they reach a barrier.



4. Specific groups of organisms have followed one another in a definite sequence through the Earth's history.

Answer 1

The law of faunal succession indicates that it is observable that assemblages or groupings of the fossil of animals and plants succeed or are arranged following one another in an order that is predictable according to time, regardless of where they are found.

The most correct answer, therefore, is A.

What is the principle of Faunal Succession used for?

This principle is used as a basic tool for stratigraphy (that is the classification of different layers of sedimentary deposits). It is the foundation for geologic time scale.

Both Stratigraphy and the Geologic Time Scale are useful for understanding geologic history.

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