Researcher and author, James Churchward, found a sacred Tibetan tablet showing "two unknown continents" on either side of present day America supporting the ancient continents theory.

A petroglyph in the Mexican Yucatan was later discovered by William Niven, depicting an unexplained configuration of land masses in both the Atlantic, and the Pacific oceans.

http://209.85.135.104/search?q=cache:LJnOtEpBuR8J:www.crystalinks.com/icastones.html+Dr.+Javier+Cabrera&hl=hu&ct=clnk&cd=15&gl=hu