Vivante & Imbelloni
Professor François Gidon, a French botanist, proposed over seventy years ago the existence of a Bronze Age Atlantis on the Celtic Shelf near Britain. He dated this inundation to between 3,000 and 1,200 BC. However, this date is too late as the area had already been submerged for some thousands of years during an event known as the Flanders Transgression, which began around 7,000 BC. A further problem with his theory is that since Atlantis, according to Plato, contained mountains, the submersion of the relatively shallow Celtic Shelf would at least have left their peaks still visible, a feature missing from the Celtic Shelf.