dinosaur. ©2015 Merdeka.com
Reporter: Hari Ariyanti
Merdeka.com – An international research team discovered fossilized dinosaur larynx bones on February 15. This is the world’s first discovery that could help unravel the mystery of what dinosaurs sounded like.
So far, studies indicate dinosaurs could have made more complex sounds than the grunts and growls of modern reptiles.
Research team member and curator at Japan’s Fukushima Museum, Junki Yoshida, told a press conference on Feb. 15 the find was an important step toward discovering how dinosaur sound production evolved.
The other research team is from Hokkaido University.
Quoted from the Asahi website, Thursday (16/2), the bones came from a Pinacosaurus fossil specimen excavated by the American Museum of Natural History in Mongolia’s Gobi Desert in 2005.
Pinacosaurus was a four-foot herbivore 3 to 4 meters long with bony skin covering its body like armor.
Team members studied the fossil and found that most of the bones were still connected and in good condition.
They then found the laryngeal bone, which is located at the entrance to the trachea and is used for breathing or making sounds.
The team compared the fossilized laryngeal bones, which were 7 to 8 centimeters wide, with those of modern reptiles and birds.
Pinacosaurus bones are similar to those of birds. Researchers say one common point is the joint between the windpipe and other bones that can be moved by muscles.
The researchers added that the shape of the Pinacosaurus larynx bones was suitable for acoustic communication.
According to the team, it is very possible that dinosaurs could have made more complex sounds than other reptiles such as crocodiles.
A thesis about the findings was published in the scientific journal Communications Biology.
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