Nah, this is fun, easy stuff. I actually have a theory that the Gulf Of Mexico was blocked off from the worlds oceans during the Ice Age
Look at this map here, it shows the whole world with the ocean levels lowered by about 300 feet. Some things to notice, no Persian Gulf, land locked Red Sea, the Mediterranean is in three sections, Japan and Korea is attached, etc.
Now, reduce that on down by another 200 feet (many believe the oceans were lowered by 500 feet) and imagine the result.
Link to map of the world's oceans reduced a little more than 300 feet.
ftp://ftp.ngdc.noaa.gov/GLOBE_DEM/pictures/GLOBALsealeveldrop110m.jpg
