[DittoJed2]

That should have read strata layers. Geologists do do this. Strata determine the age of the fossil and fossils determine the age of the strata. Read some of Menton's work. I posted one article above. Here are some other links:
http://www.revelationwebsite.co.uk/index1/menton/creation.htm

http://www.getequipped.org/menton.htm

[<1/1,000,000th%]

Geologists do do this.

I knew some geologists who were do do. :)

Sorry. Couldn't resist. ;)