 Finally, pieces of thinner layers or lenses of beachrock underlying the primary bed that was broken up and dropped downward to create the Bimini Road would be trapped beneath the blocks as they also were broken up and dropped by erosion.The trapping of these fragments of beachrock beneath the blocks composing the Bimini Road, as erosion removed loose sediments and dropped them onto the surface of the Pleistocene limestone, would have created the so-called "prop" and "wedge" rocks and blocks alleged to be a "second course" of "masonry".Presuming that the blocks of beachrock forming the Bimini Road originally formed at some unknown depth below sea level and have been dropped by erosion by several metres, dating the age of the Bimini Road by its relation to past sea level would be a useless technique that would produce misleading results.