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Re: Age of Oligocene (post-KT, sorry)

In a message dated 6/15/03 6:50:38 AM Pacific Daylight Time, 
ornstn@rogers.com writes:

<< Can someone help me here?  What is the best estimate of the beginning of 
 the Oligocene period?  I have found timelines stating anywhere from 38 to 
 34 mya.  In fact, what is the most accurate and well-documented timeline 
 available (on the internet, by choice)?  Thanks? >>

I recall recently reading somewhere that the dating of the lower Oligocene 
boundary remains contentious.