[aerohead]

Writings before Plato, place Atlantis west of Gibralter, which would be beyond the known world at the time, so it makes N. Africa a problematic location, even if it's location were right along the coastline at the time.
And there's always the possibility that 'Atlantis' were merely some Homeric-esque, Canaanite metaphorical tool, used in storytelling, about some aspect of the spectrum of human potential or folly.