I'm not advocating for Creationism, but in response to a few earlier comments to this thread about the implausibility of a God presiding over mass extinctions, the Bible does present a God who did author a mass extinction of sorts known as The Flood.
My point is, we can't dismiss the existence of a Creator based on the seemingly unreasonable notion of a God who would preside over or even initiate a massive dying among his creation, since that's pretty much exactly what the Bible says he did in Noah's day.
That is not, of course, what the OP is about, but it has been inferred in some responses. In regard to that, I agree that evidence of mass extinctions does tend to run counter to Creationism, especially in regard to the dating of such events. But the notion of extinction as being totally foreign to the existence of a Creator is a line that, in my view anyway, cannot be drawn directly, or even inferred.