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Dental Disparity and Ecological Stability in Bird-like Dinosaurs Prior to the End-Cretaceous Mass Extinction

Tooth shape disparity in small maniraptoran dinosaurs is examined in the Cretaceous. Results show stability and sudden extinction in this guild at the end of the Cretaceous. Groups are mostly static in shape space except for larger size in the early Maastrichtian. Evolution of an edentulous beak and granivory may have been key to the survival of birds. Leer más.

 

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