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RE: Theories on the extinction of dinosaurs




On Fri, 12 Nov 1999, Toby White wrote:

> 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.)

And after that, read Lillegraven and Eberle 1999 Vertebrate Faunal Changes
through Lancian and Peurcan... Journal of Paleontology 73:(4)691-710.

"...the very concept of "mass extinction" applies to only part of the
total picture.The nature and extent of faunal change seen in the Ferris
Formation differed greatly from one taxanomic group of vertebrates to
another.  By far, the most important locally documented changes among
vertebrate assemblages at and soon after the boundary involved non-avian
dinosaurs and (the immigration of) condylarthran mammals."