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Another thing occurs to me. I don't recall anyone mentioning this before
(sorry if they did) -- if _Caudipteryx_ is an oviraptorosaur, since it has
wings, that might mean wings are a primitive trait for all maniraptors.
The question then would be the function of the original maniraptoran wing
-- for brooding or for flying/gliding. If the latter, there's some
validation for DinoGeorge's view -- oviraptoroids, deinonychosaurs, and
probably therizinosauroids would all be secondarily flightless.

--T. Mike Keesey                                    <tkeese1@gl.umbc.edu>
WORLDS                                  <http://www.gl.umbc.edu/~tkeese1>
THE DINOSAURICON                               <http://dinosaur.umbc.edu>