Re: Hyper-reductionism gone mad? - "Hominins are a single lineage"

From: Val Lentz (vlentz_at_shaw.ca)
Date: 01/16/05 

Date: Sun, 16 Jan 2005 22:43:04 GMT

"Philip Deitiker" <Donevenask@worlnet.att.net> wrote in message
news:hR1Gd.20675$w62.7140@bgtnsc05-news.ops.worldnet.att.net...
> "Val Lentz" <vlentz@shaw.ca> says in
> news:cF%Fd.81569$6l.492@pd7tw2no:

> >
> > Would it interest you to know that 2 of the largest volcanic
> > explosions, ever, in geological history, occured at about 1.2
> > mya and 600 kya? Both from the same volcano, and both would
> > have had global repercussions...
> >
> > Would it also be interesting to note that at about those same
> > time periods there were many extinctions of certain monkey
> > species as well?
>
> That might make some sense for the 1.3 my reduction, but the 600 kya
> constriction lasted effectively from ~600 to 700 kya up to 200 kya, a
> period demonstrable in the X-linked loci of 400 to 500 ky. It may be
> true, looking at the x-linked that this began with an event, since
> there is rather large number tha MRCA in a small period of time, but
> some MRCA within the 400 kya period so the population still did not
> open up.

> Philip

I'm not sure that I'm understanding your thinking. Are you saying that this
long lasting constriction that you have detected at this time period
supported branching to a high degree within a restricted population?

Val

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