Re: Trike fights

["Nicholas J. Pharris" <pharrinj@PLU.edu>]

On Fri, 26 Jan 1996, Rob Meyerson wrote:

> O.K, But how can that work for animals like T-tops, that don't have any holes 
> in
> that area.  

Hold on.  _Triceratops_ had supratemporal fenestrae, just like any other 
diapsid.  It just didn't have windows in the frill.  Two different 
things.  The supratemporal fenestrae were fairly small openings just in 
front of the base of the frill.

The only way for the muscle to get to the upper frill is to go
> outside the head (as an aside, the noch between the jugal and the frill could 
> be
> where the jaw muscle went).

As explained above, a non-problem. No animal has ever had the jaw 
musculature run outside the jugal.

> OTOH, since T-tops evolved from short frilled ceratopians, it could be
> that this is a characteristic of the group.

You're a little out of date.  _Triceratops_ was a derived chasmosaurine, a 
long-frilled ceratopian, with a short, solid frill.

> 
> Rob
> 
> ***
> "Don't panic!"

You either.

Nick Pharris
Pacific Lutheran University
Tacoma, WA 98447
(206)535-8204
PharriNJ@PLU.edu

"If you can't convince them, confuse them." -- Harry S. Truman