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RE: Theories on the extinction of dinosaurs

In this general vein, it may be interesting to look at Boulter & Hewzulla 
(1999), http://www.nhm.ac.uk/hosted_sites/pe/1999_2/model/issue2_99.htm as well 
as the Fossil Record database accessible through the citations in the article, 
to see just how atypical the KT extinctions were.  (Besides which, 
Paleontologica Electronica is a unique freeware paleo journal and this gives me 
an excuse to promote them.)
  --Toby White

On Friday, November 12, 1999 8:22 PM, Dinogeorge@aol.com 
[SMTP:Dinogeorge@aol.com] wrote:
> In a message dated 11/12/99 9:02:23 PM EST, kirkam@wam.umd.edu writes:
> << Hmm...why does there have to be one distinct cause of extinction? >>
> Because as far as we know, the extinction happened all over the world at
> exactly the same time, within the resolution afforded by the geological
> column. For multiple causes to all converge like that on one narrow time span
> worldwide is well-nigh impossible.