true semilunate on one side??

["Ken Kinman" <kinman@hotmail.com>]

    I don't understand why Tim is arguing about how "easy" or difficult 
coming up with an osteological definition will be.  I looked at my post, and 
I didn't use the word "easy" in there at all.  That's just a strawman 
argument that is very easily dismissed, as I never said it was going to be 
easy.  And that Simpson regarded Mammalia as polyphyletic doesn't reflect 
the viewpoint of all mammalogists from that time (not even close).
    **However**, I would be interested in hearing more about the species or 
specimen which Tom Holtz alluded to, which supposedly would have a 
maniraptor-type "true" semilunate carpal on one forelimb, but not the other. 
 Sounds like it is either very badly preserved or a peculiar genetic 
oddity.  I assume it is probably a member of a fairly basal group of 
maniraptors.  Sounds interesting.
        ------ Cheers,  Ken



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