[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]

Re: giant toothed pterosaur

And here is the 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).


-------- 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/

NEU: FreePhone - 0ct/min Handyspartarif mit Geld-zurück-Garantie!               
Jetzt informieren: http://www.gmx.net/de/go/freephone