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Re: Forthcoming theropod paper of note on the manus
From: "Stephan Pickering"
> But, unless I am
> misreading the literature, it is presumed theropod
> hands consist of I, II, III. The recent embryological
> research may revise this, as avian embryos show five
> digits, with I and V lost. Could it be that theropod
> hands are not I-III, but II-IV?
How can one explain this?
Really not obvious for me:
Number of Number of Number of
Taxon Number of phalanges phalanges phalanges
digits of digit I of digit II of
Eoraptor 5 2 3 4
(IV & V reduced)
Coelophysis 4 2 3 4
Archaeopt. 3 2 3 4
Confuciusorn. 3 2 3 4
Source: DA p. 172-173
Cheers - Aspidel.