For a start here is the wiki on Tiktaalik:
Tiktaalik - Wikipedia
In this message:
Message 44
NJ says:
Yes, I was aware of the argument when it was discovered. Naturally, I remain unconvinced. And this is due in part that it is incomplete. We know nothing of the hindquarters, yet we're told that its essentially a missing link.
in regards to Tiktaalik.
This thread may diverge into defining a "missing link" but I'd like it to focus on Tiktaalik.
For starters I'd like to see NJ's reasoning as to why it wouldn't count as a "missing link".