Re: polyphyodonty in dinosaurs

["Rob Gay" <rob_redwing@hotmail.com>]

> Coelophysoids, compsognathids, spinosauroids, _Ornitholestes_, 
> tyrannosaurs, probably some other theropod groups I'm not thinking of<
I can't say I know a whole lot about the other groups mentioned above, but 
in _Coelophysis_, it has 4 premaxilliary teeth, and individual variation 
between 22-24 maxillary teeth. The premax teeth tend to be slightly longer, 
but in general, the teeth all have the same form. Short, and thin, very 
bladelike, with serations on both edges. As I said, I don't know much about 
the other groups mentioned, so I can't really comment on them. Just throwing 
out what I know.
Peace,
Rob

Student of Geology
Northern Arizona University
P.O. Box 20840
Flagstaff, Az. 86011
AIM: TarryAGoat

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