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Re: Theories on the extinction of dinosaurs

At 02:36 PM 11/23/99 -0500, Dinogeorge@aol.com wrote:
>In a message dated 11/23/99 1:19:46 PM EST, jbois@umd5.umd.edu writes:
><< But glib assertions of asteroid-sufficiency suppress the pursuit of such
> riveting questions. >>
>Sorry, not glib. Asteroid impact >unquestionably< caused nonavian dinosaur 
>extinction. It was >primary< cause.

I consider this statement to be far too strong given the present state of
the evidence.  It was probably the *final* causative factor, but that in
itself does NOT make it the >primary< cause.

It could only be properly called the primary cause if it is established
that there would have been more than a minor extinction given *only* the
impact.  Considering that there are some impact sites rivaling the Yucatan
crater in size with NO associated extinctions, this is, at the very least,

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