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Re: "Segnosaur" teeth



Tom Holtz wrote:

>Actually, the serrations on the teeth of Alxasaurus (as well as those of
>the Troodontidae) scale with relation to tooth size with those of known
>herbivores (iguanid lizards, various ornithischian and sauropodomorph
>dinosaurs, etc.).  Myself and my coauthors, Christine Chandler and Dan
>Brinkman, recently (i.e., last week) presented evidence which suggests an
>omnivorous diet for these forms.
>
>[Actually, we said that the tooth morphology and other characters suggest a
>larger proportion of vegetable matter in the diet of these forms than in
>that of the standard theropods].
>
>Other potentially omnivorous theropods include oviraptorosaurs,
>ornithomimosaurs, and Avimimus.

Interesting. How did they get around the problem that meat-eating teeth are
not good for processing vegetable matter and vice versa? Mammals did it by
differentiating their teeth along the jaw, dinosaurs did not have this
option.