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Lots of teeth, then beaks



So, we have an early, (presumably basal?)ornithomimosaurid
(_Pelecanimimus polyodon_) that had lots and lots of teeth, and then
there are all sorts of ornithomimoids running around with beaks.

Is there any likely correlation between the extreme toothiness of
basal ornithomimosaurids and the beakosity of ornithomimoids?  Do the
theories about beak development in birds have any relevance here?

==
Larry

"Glass of milk
Standing in between extinction in the cold
And explosive radiating growth"

http://members.tripod.com/~megalania/index.html
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