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Re: CARNIVORE FROM HERBIVORE AGAIN!



>> But we would have a lot more trouble
>> evolving a herbivorous therizinosaur from a carnivorous tetanuran...
>
>Hmm, it might not be that tricky to derive a herbivore from a carnivore but
only
>when the ancestral carnivore is not a really specialized one (which most
>theropods, as far as we know, were). Amongst the mammals, kinkajou and red

Actually, the most specialized theropods, neornithine birds, evolved many
herbivorous forms from faunivorous (animal eating, including insects)
ancestors.  Indeed, every herbivorous bird is derived from carnivorous
tetanurines!


Thomas R. Holtz, Jr.
Vertebrate Paleontologist
Dept. of Geology
University of Maryland
College Park, MD  20742
Email:Thomas_R_HOLTZ@umail.umd.edu (th81)
Fax: 301-314-9661
Phone:301-405-4084