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re: theropods

Segnosaurs are a very peculiar group of dinosaurs.  At present little is
known of its origins.  At one time it was thought they were remnants of
an ancestral theropod/prosauropod split..but recently described material
Alxasaurus shows it is a theropod.  The teeth are not those of a
herbivore, but indicate a mixed diet.  A lot of work is still needed to be
done on this dinosaur..

--John Schneiderman ( dino@cwis.unomaha.edu )