Trilobyte. You wrote:
"I noticed you used the word MANY." The other fossils are exactly the same as those above or below them. Not everything needs to change at the same rate.
You carried on:
"If that is so, then the next question should be pretty easy for you." My first try using "foraminifera in geological strata" produced this:
http://www.gns.cri.nz/what/earthhist/fossils/forams.html I'm sure that if you are really interested you can find many more examples. Foraminifera are actually used to date stages in geological strata. They change periodically through the geological column and are used to correlate the age of strata in different regions.
Of course once you have correlated the age of a particular sediment the fossils don't have to literally appear one on top of the other. This is countering in advance any criticism you might level against TFF's link.
I have always understood that Noah was supposed to take at least two of every kind but perhaps you can give us the biblical quote that shows otherwise.
