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Fw: A few questions about pterosaur anatomy



> Do you know if anyone has done any research on the sediments found in the
> wing membrane impressions of the famous rhamphorynchus roadkill specimen
> (I believe specimen number 855 at the British museum)?
> I am curious as to how valid the patterns in the left wing are?
>
> Thanks for the information, Chris Bennet. I will look it up. Do you know
if
> there are any other Rhamphorhyncid wing impressions of similar quality to
> the one mentioned above?
>
> James R. Cunningham, I still am in many ways in the 1940's when it comes
> to aerodynamics, but I understood most of what you wrote. Thank you for
the
> detail.
>
> One point where I think there might have been misunderstanding though:
> "drooping the leading edge by the amount that you suggest would make the
> aircraft unflyable."
> I intended to ask about rotation of the pteroid bone forward 90 degrees
> from the front of the wing as opposed to rotating it down.
>
> Anyway, could the pteroid bone be moved independantly of wrist movement at
all?
>
> I am just begining to realise how poor the record is. It seems like almost
> all of the specimens that managed to survive (especially in the
Cretaceous)
> are of relatively large coastal animals. I had just read an argument
> suggesting that short tailed birds wiped out most small pterosaurs
> (the author was using this to support the position
> that most theropods descended from early birds). Anyway, it seems clear
> that the pterosaur wing was able to compete quite well with the bird wing
> (which has quite a few advantages over traditional pterosaur
reconstuctions).
>
> Would there be much benefit in flight control if there was a means to
> stabilise and control the movement of the wing membrane somewhere around
the
> second phalange that was independant of wrist/wing flexing?
>
> Thank you both for answering my questions. It has really allowed me to
> explore a whole area of anatomy and flight that I never thought I would
get
> a chance to look at. I have learned about pterosaurs, functional anatomy
> and aerodynamics in much more depth than I would otherwise.
>
> -Jonas Weselake-George