Archiver > GENEALOGY-DNA > 2010-12 > 1293729515

From: Dienekes Pontikos <>
Subject: Re: [DNA] How old is Y-Chromosome Adam?
Date: Thu, 30 Dec 2010 19:18:35 +0200
References: <><>
In-Reply-To: <>

The Qesem cave finds' significance has been inflated by the media

On Thu, Dec 30, 2010 at 7:03 PM, Orin Wells <> wrote:
> A recent discovery may already have been discussed on this list and I
> missed it.  This is certainly going to cause many to re-think both the
> "ancient out of Africa" theory and just how long ago "Adam" may have
> lived as well as where.
> The dates listed in the article referenced by Robert of 300,000 years
> and 575,000 years may not be so far off as some would think.
> In Qesem cave near Rosh Ha'Ayin, 10 miles from Ben-Gurion airport east
> of Tel Aviv, a team of international archeologists under the auspices of
> Tel Aviv University have discovered 8 teeth.  Not so unusual except
> these teeth have been estimated to be about 400,000 years old and are
> the teeth of  Homo Sapiens aka modern man.
> The study was funded by the government of Spain, the American Museum of
> Natural History, the Israel Science Foundation and philanthropic groups,
> including the Irene Levi Sala CARE Archaeological Foundation and the
> Leakey Foundation.
> Along with the teeth -- the parts of the human skeleton that survive the
> longest -- the researchers found evidence of a sophisticated early human
> society that used sharpened flakes of stone to cut meat and other
> impressive prehistoric tools.
> Until this discovery it had been believed by scientists that man evolved
> no more than 200,000 years ago in Africa and migrated north between
> 150,000 and 200,000 years ago.  Possibly as late as 70,000 years ago.
> This discovery will now cause scientists to reconsider as it indicates
> man may have originated in the Middle East.  Of course we do not know
> how this will mesh with bible accounts.   Did Adam live more than
> 400,000 years ago?
> And you thought it was difficult trying to get a grip on ancestors 6,000
> or 70,000 years ago.  Just try to trace your ancestors back to this point!
> On 12/30/2010 7:58 AM, Robert Hughes wrote:
>> How old is Y-chromosome Adam?
>> Dienekes has a thoughtful post in his December-30-2010 blog about
>> finding the age of Y-Chromosome Adam with a little help from Tim
>> Janzen.
>> Dienekes writes in part:
>> The presumed shallow time depth of the human Y-chromosome phylogeny is
>> one of the main arguments of the recent Out-of-Africa theory. One of
>> the major things I found while working on my Y-STR series is that
>> point estimates from Y-STR variation are associated with huge
>> confidence intervals, because of uncertainty about factors such as
>> generation length, population history, mutation rates, even if the
>> mutation model behaves "perfectly" in symmetrical stepwise fashion.
>> More at the link below.
>> Link:
>> Regards, Robert
>> When I told my doctor about my memory loss, he made me pay in advance.
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Dienekes' Anthropology Blog:
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