What is most plausible is that a Phoenician Vessel drifted across the Atlantis unto the shores of America and it's cargo was picked up by it's indigenous, this does happen noways, for example after the Japanese tsunami , boats and parts of houses drifted across the Pacific that ended upon the eastern shores of America.
http://www.bbc.co.uk/news/world-asia-35638091
The Minoan Eruption might have drifted objects down the Mediterraneans, into the Atlantic
and ended up on the East Coast of America.