Relative dating of fossils is based on what

20-Jan-2020 13:53

Index fossils are fossils that can be used to date the rock in which they are found.The best examples are fossils of animals or plants that lived for a very short period of time and were found in a lot of places.

The geological column is an abstract construction of the earth's history based on the ages of the fossils proposed by the idea of descent with modification.For example, the principle of superposition states that sedimentary layers are deposited in sequence, and, unless the entire sequence has been turned over by tectonic processes or disrupted by faulting, the layers at the bottom are older than those at the top.