I'm uncertain why it's an either/or creationism or evolution. Even when I was Catholic I had no problem reconciling evolution with the idea of God's ongoing refining and changing of creation. Genesis is a simplified explanation, it's not geology, biology, cosmology. Does anyone seriously believe people in the desert of the Middle East 3,500 years ago could read and write and understand science? Seriously?
There was no archaeology, paleo-archaeology, paleo-botany. People saw in the world only what they saw in the here and now. There is no conflict as far as I'm concerned.
I like your way of thinking, because once I also thought it might be some kind of connection between the theories of science and the Bible.
When I realized that the theories of science are not science itself but just the theoretical side of it, then I started to check the veracity of their claims.
Your input, that 3,500 years ago men didn't know science as we do today, and that is a very good point.
However, because you don't know physics, you don't need to know the characteristics of water or of an earthquake in order to know what those are.
For example, those men didn't know geology. (well, they did, but such is food for another topic) But, they wrote that about three generations after Noah, when a guy named Peleg was born, that in his days "the earth was divided" (read land)
This is not "the families were divided" or, "the flesh was divided" but the land. In those times they knew the have been lived in one land, the known Pangaea.
Geologists claim that Pangaea was divided millions of years ago. On the other hand, the Bible claims it was divided just some thousands years ago.
No connection between time data between those two sources, only that it was one land.
From my part, I believe the witness, this is to say, the biblical narration. It goes in accord with all the claims written about how was the world in those days.
Geologists, on the other hand, have not a single valid idea of what caused the division of Pangaea, all their hypotheses stink.
I go for the winner, the Bible.
The world might be thousands of years old or trillions of years old, but life on earth is not more than a few thousands years old. A sure fact.
Then, there were not extinctions millions of years ago, that is pure pseudo-science.