Cool map.
Looks like the Great Bahama Bank, as well as Florida Bay were all dry land. That would screw up the crawfishing for the guys in Spanish Wells, for sure.
I don't see Chesapeake Bay either
A lot of things are missing. The Persian Gulf, the Red Sea is landlocked and the Mediterranean is blocked in at least two, maybe three places.
Now, some believe the water level was another 200 ft lower. Lots and lots of flooding.