the transitional link between fins and digits (or limb if you want) is the tiktaalik fins. and yet they appearing after the first digits (the tetrapod tracks fossil). so they dont fit with the evolutionery hierarchy.
no. its just was a calculation. not a prediction.
we can discuss about the authenticity of these fossils but remember that according to evolutionery biologists like dawkins and others we only need a single out of place fossil to falsify common descent. so do you agree or disagree with dawkins and others about this point?