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RE: New Ankylosaur species - pics



There's a theory that development of a beak suppresses development of teeth
on the same part of the jaw, so the presence of premaxillary teeth would
imply absence of an upper beak. If anyone knows of a counterexample (with
beak and teeth together), publish it. 

-----------------------------------------------
Dr John D. Scanlon, FCD
Riversleigh Fossil Centre, Outback at Isa
riversleigh@outbackatisa.com.au
http://tinyurl.com/f2rby
 
"Get this $%#@* python off me!", said Tom laocoonically.

-----Original Message-----
From: quailspg@frii.com [mailto:quailspg@frii.com] 
Sent: 01 November, 2009 5:29 PM
To: dinosaur@usc.edu
Subject: Re: New Ankylosaur species - pics

> Artist's concept of the head:
>
> http://i.livescience.com/images/091030-t-cooneyorum-02.jpg

I wonder why he chose to make the upper "beak" scaly instead of solid,
like the one on the mandible.

(BTW, I've always liked the dino portraits Bill Parsons does.)

-- Donna Braginetz