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Cretaceous Duck-Billed Dinosaur Had Foot and Tail Health Problems



The Cretaceous-period hadrosaurid dinosaur Bonapartesaurus rionegrensis had a foot tumor and two painful fractures in the vertebrae of its tail, according to a new study. Bonapartesaurus rionegrensis is a species of herbivorous ornithopod dinosaur in the family Hadrosauridae. It lived in what is now Argentina during the Campanian and Maastrichtian stages of the Late Cretaceous […]



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