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RE: Shark eating dino fossil found in Utah



Dino Guy Ralph wrote:

As for other theropod dinosaurs, _Yanornis_ and _Confuciusornis_ have been
found with fish remains in their guts.

_Yanornis_ also shows evidence of 'diet-switching', with a change between herbivory and piscivory - perhaps depending upon the season and/or availability of food (Zhou et al,, 2004). Other theropods may have done the same.


Z. Zhou, J. Clarke, F. Zhang and Wings, O. (2004). Gastroliths in _Yanornis_: an indication of the earliest radical diet-switching and gizzard plasticity in the lineage leading to living birds Naturwissenschaften 91: 571-574.

Cheers

Tim

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