RE: K/T birds

["Michael de Sosa" <ofsosa@uclink4.berkeley.edu>]

Ray Stanford wrote:

>     By the way, the K/T impact strongly effected both
> hemispheres.  However,
> due to hemispheric air circulation patterns and the location of
> the impact,
> it is very probable that the northern hemisphere was more
> severely effected,
> including rains that were more acid than those in the south.
> However, acid
> ground waters in the southern hemisphere should still have been a serious
> danger to egg shells.

Hmmm. Interesting then, that every single genus of amphibian in the Lancian
Hell Creek pulls through the extinction and goes on into the Paleocene
Tullock, both of which are decidely in the Northern Hemisphere. Don't most
amphibians bite the proverbial big one when you change the pH of their pond
just a little in either direction, let alone subject them to rain with a pH
of one or less? That is what Dr. Clemens tells us all the time, anyway.

Mike de Sosa