Admittedly I have not had the chance to do much research on this topic at this time. I would like to give a quick over view and then ask a couple of questions. I think this will allow that know to share and those that have to questions to ask.
This is one of the favorite fossils of modern evolutionists as a transitional fossil. Discovered in 2004 with the first published report appearing in a 2006 issue of Nature. Wikipedia Link for a more detailed back ground.
From what I have read this fossil shows the transition from fish to tetrapod (or four-legged animal). Here is a chart of where in time Tiktaalik fits the popular evolutionary ladder.
There is a good analysis on Tiktaalik here. Yes, this links to the Discovery Institute but they did some homework and linked to several articles in science web sites and journals. The question that arises is about Catherine A. Boisvert’s statement “”The disposition of distal radials in Panderichthys are much more tetrapod-like than in Tiktaalik.” (full story found here). Wouldn’t that make Tiktaalik a devolution not an evolution?
The other question that I would like to here your thought on is this, if a living creature was found with the same bone structure as Tiktaalik would that remove it from the “evolutionary ladder”?
I know this article lacks a lot of depth, but I know there are some people eager to discuss this topic and I wanted to get the discourse started. So feel free to fill in any important details I may have left out or missed and lets see what we can learn. Thank you for taking the time to read this.