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Palms in



Apologies if this topic has already been hashed over on the DML, but I am asking
which clades of dinosaurs held their hands birdwise, palms in?  I know that
anything more birdlike then tyrannosaurs did, but what about the allosaurs, the
staurikosaurs, or the prosauropods and ornithischians?  Where does the
bird-wrist mutation happen?

Thanks
Dan