Nice little theory but it seems kind of light on supporting data.
"Nice little theory but it seems kind of light on supporting data."
The now WIDELY ACCEPTED fact of Lief Eriksson's settlement in Canada was only discovered less than 50 years ago.
No telling what the next 50 years may reveal.
"In any event, subsequent mtDNA studies may support the notion that some of the genes of these vanished predecessors worked their way into the Native American bloodlines. In the past few years a fifth mtDNA lineage, called X, has turned up both in living Native American groups and in prehistoric remains. Though variants of the first four mtDNA lineages have been found in Siberian, Mongolian, and Tibetan populations, the origins of the X lineage are downright mysterious. "It doesn't seem to appear in any East Asian or North Asian populations--which are the putative progenitors, or at least the potential sister groups, of the Native Americans," says Schurr. "The source area for the X lineage is not clear, but it doesn't appear to be Asia." In fact, the first variant of X mtDNA was identified in Europeans. Schurr speculates that the X lineage originated somewhere in Eurasia, with its carriers then going their separate ways: some west in the Old World, some east all the way to the New."
"Some scientists think that the earliest colonizers could have started out somewhere in Europe, not in Asia as previously thought. That idea is rooted in a rare genetic link called haplogroup X - DNA passed down through women that dates back more than 30,000 years."
"Recent genetic samples from remains in Illinois show that the rare European DNA was around centuries before European exploration. Today, haplogroup X is found in about 20,000 American Indians."
"To some researchers, its presence suggests the Mongolian ancestors of most American Indians were latecomers. Genetic tests show the DNA is completely absent from East Asian and Siberian populations."