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Re: giant toothed pterosaur
And here is the abstract:
Abstract
The assignment of a fragment of the anterior tip of a pterosaur rostrum from
the Cenomanian Cambridge Greensand of eastern England to the ornithocheirid
Coloborhynchus capito (Seeley, 1870) is confirmed. The fragment represents
partial left and right fused premaxillae and retains broken teeth within
alveoli. A width across the palate of 56 mm, a height at the anterior rostrum
in excess of 95 mm and a tooth with a diameter of 13 mm at the base of the
crown indicates a remarkably large individual, tentatively estimated to have
had a skull length in excess of 0.75 m and a wing span of up to 7 m. This
fragment represents the largest toothed pterosaur yet reported. This find, and
several other large postcranial fragments from the Cambridge Greensand, suggest
that ornithocheirids, toothed ornithocheiroids known from the earliest Early to
early Late Cretaceous (Valanginian–Cenomanian) achieved very large, but not
giant size. Pteranodontids, edentulous ornithocheiroids currently k!
nown only from the mid Upper Cretaceous (Coniacian–early Campanian), reached
similar dimensions (up to 7.25 m in wing span) but, contrary to popular myth,
did not attain the giant sizes (wing spans of 10 m or more) achieved by
azhdarchids in the late Late Cretaceous (Campanian–Maastrichtian).
http://www.sciencedirect.com/science/article/pii/S019566711100125X
-------- Original-Nachricht --------
> Datum: Fri, 14 Oct 2011 10:26:11 -0700 (PDT)
> Von: Ian Paulsen <birdbooker@zipcon.net>
> An: dinosaur@usc.edu
> Betreff: giant toothed pterosaur
> HI:
> FYI:
>
> http://www.livescience.com/16542-giant-toothed-pterosaur.html
>
> sincerely
> --
>
> Ian Paulsen
> Bainbridge Island, WA, USA
> Visit my BIRDBOOKER REPORT blog here:
> http://birdbookerreport.blogspot.com/
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