science

'Extremely rare' fossilized dinosaur voice box suggests they sounded birdlike


An artist’s illustration of the ankylosaur, Pinacosaurus grangeri. The voice box is shown in color below its jaw. (Image credit: Tatsuya Shinmura))

The “extremely rare” discovery of an 80 million-year-old fossilized voice box that belonged to an armored dinosaur reveals that the ancient beast may have sounded more birdlike than experts previously thought, new research suggests. 

Pinacosaurus grangeri — a squat, armor-plated and club-tailed ankylosaur unearthed in Mongolia in 2005 — was discovered with the first fossilized voice box (larynx) found in a non-avian dinosaur. 



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