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> Date: Tue, 14 Aug 2001 17:21:15 EDT
> From: Dinogeorge@aol.com
> << Where do you get your data for this, and why is it only
> irreversible in dinosaurs? >>
> [1] Nobody has found an unassailable instance in dinosaur evolution
> of the reappearance of digital phalanges, or of the reapparence of a
> metapodial once lost.

I'm sure I'm missing something obvious here, but what about those
wacky tetradactyl theropods, the therizinosaurs?

 _/|_    _______________________________________________________________
/o ) \/  Mike Taylor | <mike@miketaylor.org.uk> | www.miketaylor.org.uk
)_v__/\  "There is hopeful symbolism in the fact that flags do not wave
         in a vacuum" -- Arthur C. Clarke.