Biology

An ankylosaur larynx provides insights for bird-like vocalization in non-avian dinosaurs

J. Yoshida, Y. Kobayashi, et al.

Discover the fascinating insights into dinosaur vocalization through the first fossilized larynx found in *Pinacosaurus grangeri*, revealing its bird-like adaptations. This groundbreaking research was conducted by Junki Yoshida, Yoshitsugu Kobayashi, and Mark A. Norell.

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Abstract

This paper reports the discovery of a fossilized larynx in the non-avian dinosaur *Pinacosaurus grangeri*, offering insights into the evolution of vocalization in dinosaurs. The *Pinacosaurus* larynx, while sharing features with non-avian reptiles, exhibits specializations like a firm and kinetic cricoid-arytenoid joint and elongated arytenoids, suggesting a vocal modifier role similar to birds, rather than a vocal source. This finding provides evidence for bird-like vocalization in non-avian dinosaurs and represents the oldest known laryngeal fossil from the Cretaceous period.

Publisher

Communications Biology

Published On

Feb 15, 2023

Authors

Junki Yoshida, Yoshitsugu Kobayashi, Mark A. Norell

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