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Re: The Men Who Stare At New Papers



On Wed, Nov 4th, 2009 at 10:06 AM, David Marjanovic <david.marjanovic@gmx.at> 
wrote:

> > > It was once assumed that the presence of
> > > quill nodes along the ulna was an exclusively flight-related
> > > character - until they turned up in _Velociraptor_.
> >
> >  Unless, of course, Velociraptor had flying/gliding ancestors / was
> >  secondarily flightless, which appears likely.
> 
> Do any extant flightless birds have quill knobs? I think not...

It wouldn't surprise me if ostriches still retain quill knobs, judging by the 
males' use of the wings 
during displays.

-- 
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Dann Pigdon
GIS / Archaeologist                Australian Dinosaurs
Melbourne, Australia               http://home.alphalink.com.au/~dannj
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