Moreau de Jonnès, Alexandre-César
Alexandre-César Moreau de Jonnès (1778-1870) was a French soldier and adventurer. He wrote a number of books including one on prehistory in which he placed the Pillars of Heracles in the east and suggested that in the past there had been a large ocean of which the Black, Caspian and Aral Seas are just remnants. He located Atlantis in the Sea of Azov.
His book, in French, can now be read or downloaded online(a).