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Sim Koning wrote-
I just watched the Discovery channel documentary 'Dinosaur Planet' and
noticed that once again, the Oviraptor is portrayed as a vicious predator
competing with Velociraptor. I don't really understand this view, because
to me, Oviraptors have always appeared highly convergent with parrots.
Since we don't exactly see parrots competing with eagles for food, why is
it they are viewed as predators? The question is what were they eating? Is
there any fossil evidence of any hard shell nuts, fruits, or seeds from
that time period? On the above mentioned show, they brought up the fact
that there appear to be too many predators in that area at the same time.
My thoughts are that it's not really a problem at all, that Oviraptor, like
Therizinosaurus, is another Maniraptorian form that evolved to be a
A lizard was found in the stomach area of the Oviraptor holotype (Norell et
al., 1995), so oviraptorids were at least partially carnivorous. Then there
are the juvenile Byronosaurus heads preserved in the Citipati nest (Norell
et al., 1994), which are certainly suggestive of carnivorous behavior.
Gastroliths were found in the basal oviraptorosaur Caudipteryx (Ji et al.,
1998), but they're also present in definitively carnivorous megalosauroids.
Regardless, I'd agree the jaws of oviraptorosaurs suggest they were doing
something different in regards to eating.