[re: the fish-tetrapod transitional fossil tiktaalik being found in the very geological stratum predicted by evolution]
And tiktaalik might have been found in that deep stratum for either of at least two reasons:
1. It was less able to seek higher ground than other, "smarter" animals, and thus was buried deep in the Flood.
2. It is actually an antediluvian laboratory chimera and hence an out-of-place artifact of a society already known to have been inordinately cruel.