Re: Hair loss (was Re: underwater space aliens)
Phillip Bigelow (n8010095@cc.wwu.edu)
4 Nov 1995 13:50:35 -0800
>clarke@acme.ist.ucf.edu (Thomas Clarke) asked:
>>
>>My understanding is that speciation in space rather than in time depends
>>on geographic/reproduction isolation. So what was it that isolated
>>the proto-Australopiths from the proto-Pans?
>>
>>
jamesb@hgu.mrc.ac.uk responded:
>I have heard of two arguments. The first is the Danakil Island/sea flooding type story, and the
>other was that it was the formation of the Rift Valley itself. Are there are any others? I would
>be interested to hear of them.
As far as supposed water barriers, (or lack of water barriers), you should
look at an up-to-date paleogeographic reconstruction of the East Africa
region during the Pliocene:
Atlas of Mesozoic and Cenozoic Coastlines
by A.G. Smith, D.C. Smith, and B.M. Funnell.
Cambridge University Press. Year 1994.
It's considered to be authoritative (at the time of this writing).
Cheers,
<pb>
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