Good we agree! There was widespread continental flooding in the past!
That wasn't so hard, was it? Now we can see our major disagreement is not the mechanism of widespread flooding (so lets not hear anymore about how its impossible for the world to be flooded), because we both believe that it happened, but at what time it occurred, and why.
Not all of these areas were undersea at the same time. Your western region was Late Cretaceous. My Eastern region was last undersea in the Mississipian some 330 million years ago. Those two seas really won't work if you try to make them the residue of one flood. Nothing matches up.
Of course not according to orthodox Geological models. If the whole world was flooded at once, we couldn't have animals evolving from ooze, and humans being born from monkeys, since they all would have then drown, and we'd have to start all back over again at the fish-crawling-onto-land stage, after numerous attempts to mutate fins into feet once again, and so simultaneously with mutating gills into lungs. How tedious.
Again, since no one was there according to the millions of years ago theory, I don't see how there is certainty that the flooding wasn't simultaneous, since you are certainly admitting that everywhere with large sedimentary rock layering was once underwater. The non-simultaneity is an interpetation of various radioactive dating methods with pre-conceived requirements of non-simultaneity. The simple observable fact is that all these places were once under a sea.
Still, this looks like pretty wide-spread continental flooding being asked for:
http://www.scotese.com/cretaceo.htm