4 rules of relative dating
The Law of Superposition states that beds of rock on top are usually younger than those deposited below.
" Ultimately fossils are dated using Darwinian evolutionary theory.
The absolute dating is more precise than relative dating because it tells the exact age of the fossils.
The timeline established by the theory of Darwinian evolution ultimately determines the age of fossils found in any given strata.
Scientific American Oct 1980 156-168 The rocks on the surface of the southern Appalachians are older than the sedimentary layers under them.
Ager, Derek I can think of no cases of radioactive decay being used to date fossils.