For people to say there was no flood, all you have to do is see the pyramids that are submerged off of Japan or the Temple complex off the coast of Cuba in around 2000 feet of water.
The muck in the arctic is actually composed of billions of pieces of smashed up bones. Something bad happened 10000 years ago.
There also will never be a fossil transition that will be recorded. That is not how it works. It takes intense magnetic fields to transition species. The change happens all at once. Not radiation or slow genetic changes.