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Re: Large last gasp of pterosaurs
----- Original Message -----
Sent: Thursday, January 22, 2004 2:06 PM
Subject: Re: Large last gasp of pterosaurs
> I like Mr. Cunningham's point. I would just like to add that given that
> pterosaurs were apperantly quadrupedal and many of them would probably
> had a bird like metabolism, being trapped on the ground for even a few
> could wipe out a species (especially if there were other pressures).
> Think of the advantage the heavily insolated running bird has in hunting
> the ground compared to a pterosaurs delicate quadrupedal movement.
> Has anyone considered that the smaller type of Quetzalcoatlus may be
> evidence of sexual dimorphosism?
> I can think of a number of arguments for this.
Yes, see Bennett, S. C. 1992. Sexual dimorphism of Pteranodon and other
pterosaurs, with comments on cranial crests. Journal of Vertebrate
S. Christopher Bennett, Ph.D.
Assistant Professor of Basic Sciences
College of Chiropractic
University of Bridgeport
Bridgeport, CT 06601
"Savor the sun--but when the clouds come make animals" (Hexum)