Here's another article by Woodmorappe discussing the problems with the concept of the 'geologic' column'.
http://www.trueorigin.org/geocolumn.asp
http://www.trueorigin.org/geocolumn.asp
Since you mention Woodmorappe, here's a blog dealing with his article The non-transitions in human evolutionon evolutionists terms.
By the way, "John Woodmorappe" is the nom de plume of Jan Peczkis, a high school teacher.