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Re: The amazing 'Dark-Wing' Rhamphorhynchus
> The critical new discovery, described by the authors, is of a network of
> fibres (probably muscles but might be elastic fibres), that run transverse to
> the aktinofibrils (also superbly picked out by the UV light technique).
Yes!! -- Haleluyah !
> The point being that such a system is exactly what would be expected (and
> needed) in an extensible membrane stretched between the fore and hind limbs.
Or in an extensible membrane that doesn't.
> The authors also describe a blood vessel system that ramifies through the
> wing-membrane and, using Tischlingers UV light techniques, were also able to
> find evidence for this system in some previously described specimens of
> Rhamphorhynchus. This is one of the most significant papers ever published on
> pterosaurs and I take my hat off to Tischlinger and Frey for a major
> ground-breaking contribution.
I look forward to reading it. I think you may well be right about its
> This specimen also bears directly on previous discussions regarding the
> attachment of the brachiopatagium to the hind limb in pterosaurs. Plates 2
> and 5 of the Tischlinger and Frey paper clearly show the inner part of the
> brachiopatagium extending down the external margin of the tibia as far as the
> ankle. This segment of the brachiopatagium has the same colour and texture as
> the main part of the brachiopatagium, is completely continuous with it and,
> most tellingly, even contains a small fold that starts in the main part of
> the brachiopatagium and runs down into the segment of the brachiopatagium
> external to the leg. A uropatagium is also preserved, but seems to be
> narrower than, for example, in Sordes.
I look forward to seeing it.