Posted on 01/08/2009 7:46:36 PM PST by SunkenCiv
The first people to arrive in America traveled as at least two separate groups to arrive in their new home at about the same time, according to new genetic evidence published online on January 8th in Current Biology, a Cell Press publication. After the Last Glacial Maximum some 15,000 to 17,000 years ago, one group entered North America from Beringia following the ice-free Pacific coastline, while another traversed an open land corridor between two ice sheets to arrive directly into the region east of the Rocky Mountains. (Beringia is the landmass that connected northeast Siberia to Alaska during the last ice age.) Those first Americans later gave rise to almost all modern Native American groups of North, Central, and South America, with the important exceptions of the Na-Dene and the Eskimos-Aleuts of northern North America, the researchers said... Such a dual origin for Paleo-Indians has major implications for all disciplines involved in Native American studies, he said. For instance, it implies that there is no compelling reason to presume that a single language family was carried along with the first migrants.
(Excerpt) Read more at eurekalert.org ...
"purchase it for $31.50" my ass.Complete Mitochondrial Genome Sequence of the Tyrolean IcemanThe Tyrolean Iceman was a witness to the Neolithic–Copper Age transition in Central Europe 5350–5100 years ago, and his mummified corpse was recovered from an Alpine glacier on the Austro-Italian border in 1991 [1]. Using a mixed sequencing procedure based on PCR amplification and 454 sequencing of pooled amplification products, we have retrieved the first complete mitochondrial-genome sequence of a prehistoric European. We have then compared it with 115 related extant lineages from mitochondrial haplogroup K. We found that the Iceman belonged to a branch of mitochondrial haplogroup K1 that has not yet been identified in modern European populations. This is the oldest complete Homo sapiens mtDNA genome generated to date. The results point to the potential significance of complete-ancient-mtDNA studies in addressing questions concerning the genetic history of human populations that the phylogeography of modern lineages is unable to tackle.
Luca Ermini et al
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To all -- please ping me to other topics which are appropriate for the GGG list. |
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The vikings were here first! Or maybe the romans.
After which the ice melted, proving they drove SUV’s.
This opinion conflicts with much older artifacts and buildings found in South America, that by all appearances are about 60,000 years old, and rather technologically advanced, as well.
So now we owe more reparations, right?
My ancestors crossed the Siberian land bridge and all I got was this lousy T-shirt!
Their results show that the haplogroup called D4h3 spread from Beringia into the Americas along the Pacific coastal route, rapidly reaching Tierra del Fuego. The other haplogroup, X2a, spread at about the same time through the ice-free corridor between the Laurentide and Cordilleran Ice Sheets and remained restricted to North America.
To this I think we can add haplotype A01 as one of the founding groups associated with the early migration along the Pacific coast.
No. Not even close. You're off by about 12-15,000 years.
Helen Thomas was here first, and she won’t go back to where she came from.
Yeah, such a "striking novelty" that it was proposed by many laymen such as me over 30 years ago. It's nice that DNA can finally prove us right and prove wrong the Clovis Luddites. It's the only explanation (to date) that accords with the fact of mature societies in South and Meso America (coastal migration) and less-developed ones northward (overland migration).
There was clearly a continuing series of explorations and movement into this hemisphere over 20,000 years or so. People with boats skirted the ice sheets and headed for the Stone Age Riviera.
Now that you mention it, I think this may be a duplicate topic... uh boy (hustles off into the vast intricacy that is FR)...
oh, okay (whew), I guess not.
http://www.freerepublic.com/focus/f-news/1778364/posts
http://www.freerepublic.com/focus/f-news/2024091/posts
http://www.freerepublic.com/focus/f-news/2039558/posts
http://www.freerepublic.com/focus/f-chat/2052126/posts
http://www.freerepublic.com/focus/f-chat/2156525/posts
http://www.freerepublic.com/focus/f-chat/2158114/posts
http://www.freerepublic.com/focus/f-news/2159901/posts
:’)
It was proposed by Harrison in the 1960s (southern California) and Fladmark in the 1970s (British Columbia).
We are finally getting some good data to support those ideas!
:’) The two language families of the Arctic indicate a later ingress than the diverse South American groups, which McWhorter has described as a “delirious, kaleidoscopic riot”. Either there were a number of waves of settlement by un- or distantly-related groups (just as in nearly every other land on Earth) or they’ve been there a really, really long time, or some combination of the two.
Oppenheimer places haplogroup X at Meadowcroft 25,000 years ago.
American Indian mtDNA, Y Chromosome Genetic Data, And The Peopling Of North America
Well my “proposal” certainly didn’t carry the weight of Harrison’s and Fladmark’s. My point was that even a dumb layman like me could figure it out long before entrenched academics would even consider the possibility. Enormous effort was required to lure textbook-selling Luddites to Chile to even consider the evidence of pre-Clovis habitation at Monte Verde.
That is probably due to the Australian immigrants that were already in South America.
They were "eliminated" through war, attrition, and most probably, assimilation. That would probably include the adoption of various words, phrases, into the languages of both cultures.
You are certainly right that the Clovis-first crowd has retarded research for a couple of generations, and is still trying to do so. But the tide has turned.
I have evidence of that early coastal migration from some of my own work, with an early dated occurrence of haplotype A01. DNA research is sure giving us a lot of new tools!
Now, now -- let's keep this civil.
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