Re: New species?
Posted: Wed Aug 26, 2009 10:53 am
Two things.
One, I really don't like the word "migration" in this context. It implies an almost strategic planning which I think is not appropriate for scattered HG bands. Groups following herds of animals back and forth across Beringia had no idea that they were "migrating." Similarly groups which may have arrived in South America by sea are more far more likely to have been blown ashore. Let's call them "accidental tourists." Marine hunters sailing along the southern Beringian coast makes sense as they would be able to go ashore and camp but the basic activity is merely less difficult than it would be in the Atlantic where hunters would have had to pick their way along the edge of the ice sheet. Those Atlantic hunters would not have known that what they were doing was more difficult, only that it was the way they survived.
Second, the existence of microblade technology in Siberia has been known since the mid 1930's. Further, that same microblade technology has been detected in Alaska which certainly seems to indicate that it traveled across the bridge. Stanford is hardly making a radical claim, there. However, I recall seeing a chart in which it was shown that the vast majority of Clovis sites were east of the Mississippi which seems counter-intuitive if Clovis-equipped populations entered from the Northwest.
Of course, if Al Goodyear's 50,000 BC date holds up at Topper then everything goes out the window. That would precede the LGM by 33,000 years.
One, I really don't like the word "migration" in this context. It implies an almost strategic planning which I think is not appropriate for scattered HG bands. Groups following herds of animals back and forth across Beringia had no idea that they were "migrating." Similarly groups which may have arrived in South America by sea are more far more likely to have been blown ashore. Let's call them "accidental tourists." Marine hunters sailing along the southern Beringian coast makes sense as they would be able to go ashore and camp but the basic activity is merely less difficult than it would be in the Atlantic where hunters would have had to pick their way along the edge of the ice sheet. Those Atlantic hunters would not have known that what they were doing was more difficult, only that it was the way they survived.
Second, the existence of microblade technology in Siberia has been known since the mid 1930's. Further, that same microblade technology has been detected in Alaska which certainly seems to indicate that it traveled across the bridge. Stanford is hardly making a radical claim, there. However, I recall seeing a chart in which it was shown that the vast majority of Clovis sites were east of the Mississippi which seems counter-intuitive if Clovis-equipped populations entered from the Northwest.
Of course, if Al Goodyear's 50,000 BC date holds up at Topper then everything goes out the window. That would precede the LGM by 33,000 years.