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Re: K-T mammals

In a message dated 5/12/02 8:14:12 AM EST, jbois@umd5.umd.edu writes:

<< They're not talking about elimination before--they're saying that there
 was a steep decline in diversity and numbers (if memory serves) in the
 Hell Creek formation. >>

If there was indeed a pre-KT dinosaur decline in the Hell Creek (big "if"), 
it could have had any number of different local explanations and probably had 
very little to do with the global KT dinosaur extinction event.