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Re: Additional material on the Sinornthosaurus venom report

there's a slightly better image of the teeth here:


Mmm... almost certainly hanging out of their sockets. Is this another case of 
PNAS not having reviewed papers? It's not at all unusual to find depressed 
areas such as this in theropod tooth roots.

Denver Fowler

----- Original Message ----
From: "Thomas R. Holtz, Jr." <tholtz@umd.edu>
To: archosauromorph2@hotmail.com; dinosaur@usc.edu
Sent: Tue, 22 December, 2009 16:33:15
Subject: RE: Additional material on the Sinornthosaurus venom report

> From: owner-DINOSAUR@usc.edu [mailto:owner-DINOSAUR@usc.edu] 
> On Behalf Of Brad McFeeters
> Sent: Tuesday, December 22, 2009 11:32 AM
> To: dinosaur@usc.edu
> Subject: RE: Additional material on the Sinornthosaurus venom report
> On the subject of "groovy" teeth, *Orkoraptor* is partly 
> diagnosed by having grooves and furrows on its teeth.  What 
> was their most likely function?  

This assumes that these are functional rather than simply the consequences
of tooth development.

Thomas R. Holtz, Jr.
Email: tholtz@umd.edu    Phone: 301-405-4084
Office: Centreville 1216            
Senior Lecturer, Vertebrate Paleontology
Dept. of Geology, University of Maryland
Fax: 301-314-9661        

Faculty Director, Earth, Life & Time Program, College Park Scholars
Faculty Director, Science & Global Change Program, College Park Scholars
Fax: 301-314-9843

Mailing Address:    Thomas R. Holtz, Jr.
            Department of Geology
            Building 237, Room 1117
            University of Maryland
            College Park, MD 20742 USA