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Re: Cretaceous Mass Extinction



At 01:45 PM 3/11/97 -0800, Jonathon Woolf wrote:
>
>...: Keith Rigby claims to have
>found dinosaur fossils associated with Paleocene mammals, _in situ_,
>not reworked, in two different locales.  One is in China, the other
>is the Bug Creek deposits of Montana, North America.  
>
>Does anyone know if this claim has been either confirmed or refuted
>by other workers?  ...
>
It has been largely refuted, though perhaps not finally and decisively.

A good, and rather convincing, refutation is found in _The Bug Creek
Problem and the Cretaceous-Tertiay Transition at McGuire Creek, Montana_,
Donald L. Lofgren. _Geological Sciences, vol 140_, Univ. of Califoria Press.

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May the peace of God be with you                sarima@ix.netcom.com
                                                      swf@elsegundoca.ncr.com