[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]
From: "Jaime A. Headden" <firstname.lastname@example.org>
Subject: Re: Oviraptor=Parrot?
Date: Sat, 04 Feb 2006 15:48:10 -0800 (PST)
It was actually my argument that we don't know all the facts to make any
declarative statement about WHAT they ate, but the proposed omnivore model
been in print, aside from the egg-eating, oyster-crunching, and predatorial
models. Also note that the environment these animals lived in was arid and
tending to be devoid in the kind of environment than such things as enough
plentiful fruits are unlikely to sustain thousands of oviraptorids at once,
diet was likely to be at least somewhat opprtunistic than it was for
I think you may have missed Dann's post on parrots such as the Kea. I wasn't
aware that some parrot species are highly opportunistic and will eat just
about anything, including live vertebrates! While the jaws of these birds
are designed primarily for a herbivory, they can also be used for predation.
Also, note that oviraptorids are not parrots.
Of course I'm aware they are not parrots. However, parrots are dinosaurs and
they do have a very similar skull design.
If you look close, you will notice that the jaw and beak design is rather
similar to that of a parrot. Both animals have a palate that drops below the
jaw line, both animals have the same decurved beak shape. A bird's beak is a
tool, designed for a specific function. A parrot's beak is designed to crush
things so that is can get to whatever is inside. Obviously this could apply
to a large number of food items. As you mentioned, their environment was an
arid one, and this could very well be an adaptation to break apart and
consume food that would otherwise be impossible for other animals to eat.
An adaptive dietary consideration needs to take more into account
than just the head's similarity to one group of birds. There are other
similar animals that may be worth considering, such as turtles (marine
are crustacean- and mollusk-feeders which will also eat fish)
The hawksbill is the closest thing I could find in similarity to an
Oviraptor. I think there are far more morphological similarities with
parrots then there are with sea turtles.
and hyeanas (who
have adapted to crunching on the foods they eat to derive the most from
Since hyenas lack beaks and look nothing like an Oviraptor, I think it's
safe to say that their diets were probably not all that similar.
durophage is to potentially ignore that oviraptorids are extinct, are not
birds, and we must stick to the morphological and taphonomic data.
Actually one could argue that Oviraptors are a flightless type of bird,
depending at how you look at it I guess.
Do You Yahoo!?
Tired of spam? Yahoo! Mail has the best spam protection around