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Re: Supernova causing P/T boundry mass extinctions?





On Thu, 5 Jan 1995, Tom Holtz wrote:

> 
> Maybe we have to chalk up the missing meter to the Signor-Lipps effect.
> 
Given the number of man hours that have gone into trying to find 
vertebrate fossils in that meter section, I have hard time just 
explaining it away through the Signor-Lipps effect.  That tends to come 
into play when things have been sampled in a relatively uniform fashion.  
This interval, however, certainly doesn't suffer from being under 
examined.  Therefore, the lack of fossils, be it caused by some primary 
or some drastic post-depositional processes, would seem to be real.

Peter Harries