Re: ceratopsian reconstruction

[Dinogeorge@aol.com]

In a message dated 96-01-16 10:17:16 EST, ArtSippo@aol.com writes:

>After reading McLoughlin's book I went back to look at the ceratopsian
>exhibits in the AMNH in Manhattan.  Low and behold there were 2 fenestra
just
>behind the eyes at the base of the frill which in the protoceratops
specimens
>wasa filled in with plaster!  All of the ceratopsian skulls had them and
they
>were consistent with paths for tendons from muscles attached to the frills.
> If you look at the frills, there appears to be muscle insertions along the
>edges.  Also, most of the more advanced ceratopsian frills had fenestrae in
>the main portion of hte frill which light have allowed for muscles expansion
>during contraction.  
>
>What sayeth the professional cognoscient

I'm not sure I see the point of this post. Those two fenestrae at the base of
the frill are the well-known diapsid supratemporal fenestrae, though which
pass jaw adductors from the posterodorsal region of the skull to the
mandible. What does this have to do with whether or not the frill was solidly
engulfed by the neck musculature (anatomically impossible, by the way; the
frill was free)?