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Re: Sereno's paper & uncinate processes



>        While browsing through Sereno's new dinosaur paper, I noticed in
>figure 5 he cites "ribs with uncinate processes" as a character linked to '
>powered flight in birds.  Actually, uncinate processes have a wider
>distribution than this, as crocodiles possess them (Duncker, 1978, fig. 8).

If you have found a single exampel of a croc with uncinate processes, this
is an aberation. I cannot recall seeing any uncinate processes on the ribs
of any crocodile I have looked at.

Cheers,

Paul


Dr Paul M.A. Willis
Consulting Vertebrate Palaeontologist
Quinkana Pty Ltd
pwillis@ozemail.com.au