Hi everyone -
An intense discussion.
The problem with this Solutrean - North Atlantic hypothesis is that the distribution of clovis starts from the south coast of North America:
http://www.nps.gov/history/seac/outline ... source.htm
My guess is that this "solutrean" technology came from coastal Africa via South America, as such a model provides the only explanation for the gross physical characteristics of the Yuchee and Ocanachee peoples (5 foot maximum male adult height, "unusual" eye color, hair different from other Native American peoples, etc. )
Then we have the small problem of the finds at Pedra Furada, Brazil.
My current estimate is that clovis technology spread was most likely along the Gulf coast at first, and then along mammoth and eastern bison migrations via salt licks from summer pasture to winter pasture and back.
We do have a North Atlantic passage at 8,350 BCE, Canadian Maritime Archaic, "Red Paint People", which can be dated by the die offs which may possibly have been caused by the introduction of European disease vectors, and the appearance of Dalton Maritime Archaic points, and the existence of the X mt DNA haplogroup in North America.
Just my opinion for now. I greatly enjoyed that image of the ice pack.
E.P. Grondine
Man and Impact in the Americas