Question

Why are fossils most likely found in sedimentary rock samples?

Answer 1

Because sediments that cover the fossils slow or stop the process of decay and protect the body of the dead organism from damage.

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Answer 2

So most fossils are found in sedimentary rocks, where gentler pressure and lower temperature allows preservation of past life-forms. Fossils become a part of sedimentary rocks when sediments such as mud, sand, shells and pebbles cover plant and animal organisms and preserve their characteristics through time.