2023
DOI: 10.1111/pala.12674
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The dentary of hadrosauroid dinosaurs: evolution through heterochrony

D. Fredrik K. Söderblom,
Alejandro Blanco,
Albert Prieto‐Márquez
et al.

Abstract: The near‐global distribution of hadrosaurid dinosaurs during the Cretaceous has been attributed to mastication, a behaviour commonly recognized as a mammalian adaptation. Its occurrence in a non‐mammalian lineage should be accompanied by the evolution of several morphological modifications associated with food acquisition and processing. This study investigated morphological variation in the dentary, a major element of the hadrosauroid lower jaw. Eighty‐four hadrosauroid dentaries were subjected to geometric m… Show more

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