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true semilunate on one side??
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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