Team Including Hokkaido Univ. Unearths New Dino in Mongolia
16:43 JST, November 23, 2023
SAPPORO (Jiji Press) — A research team including Hokkaido University has discovered in Mongolia the skeleton of a new dinosaur, curled up in a position like that of a sleeping modern-day bird.
In August 2016, the team, including Hokkaido University Prof. Yoshitsugu Kobayashi, unearthed the nearly complete fossil skeleton of the dinosaur, named Jaculinykus yaruui, which means “speedy dragon claw.”
Believed to be from around 70 million years ago during the Late Cretaceous period, the new alvarezsaurid dinosaur specimen was discovered in the Nemegt area in the southwestern part of the Gobi Desert in a joint excavation project with a Mongolian institute.
While alvarezsaurid dinosaurs had birdlike features, the team found that the Jaculinykus yaruui is a new species because of its unique features, such as a large protrusion near its tibia.
According to the team, the specimen was found with its head tucked into its body and its legs folded, much like when modern birds sleep. The team believes that the posture was associated with heat conservation.
The team said that, through the discovery of the fossil remains, it has been able to trace the history of avian sleeping behavior further.
The focal point of the discovery is that a dinosaur behavior was preserved, something rarely seen in fossils, Kobayashi said, noting the importance of the finding for research into how dinosaurs evolved into birds.
"Science & Nature" POPULAR ARTICLE
-
Govt, U.S. Sign Deal to Send 2 Japanese Astronauts to the Moon; Toyota to Contribute to Artemis Program with Lunar Cruiser
-
Gigantic Ichthyosaur’s Fossils Found by British Girl, Father
-
Jellyfish Invade Venezuelan Waters, Worrying Fishermen
-
Fossils of Colossal Snake Vasuki Unearthed in India
-
Fossil of 16-million-year-old River Dolphin Found in Peru
JN ACCESS RANKING
- China Mutes Memorialization of Reformer Hu Yaobang; Memories Could Spark Critique of Xi Administration
- Shinkansen Services Suspended After Man ‘Searches for Phone’ on Tracks; Disruption Affects About 14,000 Passengers
- U.S. 7th Fleet officer Arrested on Suspicion of Stealing Sushi, Sashimi, Chicken at Kanagawa Shopping Mall; Suspect Caught Mid-Meal
- UNRWA Director Describes Catastrophic Destruction in Gaza; Says Relief Trucks Robbed, ‘People’s Hearts Destroyed’
- JAL Airplane Experiences Radio Malfunction During Flight, Lands Safely By Relying on Light Signals