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Re: beaks and teeth
Archosaur J wrote:
<How about ramphorynchoids. They had beaks and teeth.>
Rhamphorynchid taxa like *Angustinaripterus* and *Droygnathus* had
teeth all the way up to the front of the snout, except for a short
region of the premaxillary and mandibular symphyses; I wouldn't think
there'd be much of a functional beak present, if any at all. However,
tell-tales of fleshy covering (i.e. foramina) are mostly not present
in pterosaurs except the much more primitive *Dimorphodon*- and
*Eudimorphodon*-grade ones. Only *Rhamphorhynchus* seems to have had
an elongate edentulous region that has, in one specimen I can note,
the impression of a "beak" on both lower and upper jaws. But Rhampho
is very derived from other rhamphorhynchid or rhamphorhynchoid
pterosaurs, so the condition may be unique for him, or not.
My doubtlessly amateurish opinion.
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Jaime A. Headden
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