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Re: flying Archie

----- Original Message -----
From: "Michael Habib" <mhabib5@jhmi.edu>
Sent: Sunday, September 24, 2006 9:16 PM

At the broadest scales, species
durations seem just as good a measure of "success" as clade size.

I disagree. Species duration depends entirely on the species concept... you have at least 25 to choose from.