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

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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Playback language: English
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
Tags
dinosaur larynx
vocalization evolution
Pinacosaurus grangeri
Cretaceous period
bird-like vocalization
fossil discovery
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