Snare and racket, thanks.
I have studied evolution for over 30 years( a promise I made to a couple professors who wanted me to study the sciences instead of persuing Law and Business degrees..haha) so I'm not to worried about the conversation. However, the JW's seem to have some theories that are unique. The fact that they are taught by people who don't understand the subject matter leads to a varity of opinions making it even more difficult to know which hairbrain theory he'll latch on to. Sometimes he'll even conflate two theories and make up his own.
Btw, not to be a jerk, but I should clarify some of your info.
First, there are not billions of known fossils in the record. Not even close. (edit; I think you're talking about Fossils period for which there are probably billions if you count all the stuff people just pick up and take home or ignore altogether..I'm talking about those that provide the record for the evolution of species)
The box car quote you refer to was from the publication, "The Origin of Life, 5 questions worth asking" which I believe was published in 2010. The quote was actually a misquote taken from a book written by Fred Smith. And, the quote was that there wasn't enough fossils to fill a box car. Obviously that is not true.
Another question, do JWs have a position of transitionary fossils like Ambulocetus (walking whale) or Archaeopteryx (bird to dinosaur)