‘Teen’ pachecephalosaur fossil is found to date and is the most complete skeleton

‘Teen’ pachecephalosaur fossil is found to date and is the most complete skeleton

'Teen' pachecephalosaur bits in fossil record

Artist example of Z Rinpoche. Credit: Masia Hutori

According to a new research published in the journal today, a “teen” belonging to the Gobi Desert in Mongolia can provide answers to the delayed questions around the Pachacepalosor Dinosor Group. Nature. The Gyoshm represents a new generation of fifty -five, and is the oldest and complete skeleton of this dinosaur group found to date.

According to the North Carolina Museum of Natural Sciences and the work, Author North Carolina State University Associate Research Professor Lindsay Zano says “Pachacefolosor is a famous dinosaur, but he is also rare and mysterious.”

The sample was discovered by the Mongolian Academy of Sciences in the Kharan Duk area of ​​East Gobi Basin by Sugatabatar Chenzourg, which is the main author of the dissertation and is currently a research assistant in the NC State.

The new species is called Zoosifel Rinpoche, which is a combination of zoos, which means “root” or “original” in Tibet, and saffron, which means “head” in Latin. The specific name in Tibetan, “Rinpoche” or “precious one”, refers to the dome skull, which is exposed on a mountain like Kabuchin Jewel.

Z. Rinpoche lived about 108 108 million years ago during the early Creteisis period, now in the Gobi Desert in Mongolia. At that time, the area was a valley with lakes tied to the lakes and all around it had chicks or acne. Pachycephalosaurs were planting, and adults could increase about 14 feet tall (4.3 meters) and 7 feet tall (2.1 meters), weighing 800-900 pounds (363-410kg).

“Z. Rinpoche predicts all the famous Pachespholosor fossils for about 15 million years,” says Chanzorg. “It was a small animal – less than 3 feet or 1 meter – and the most skeleton found yet was the full sample.”

  • 'Teen' pachecephalosaur bits in fossil record

    Lindsay Zano, a specialist, has kept the skull of Zuisifel Rinpoche. Credit: Alfau Elsandro Cherinza

  • 'Teen' pachecephalosaur bits in fossil record

    Z Rinpoche Skull. Credit: Sugatabar Chanzorg

The Z. Rinpoche sample that the team discovered did not fully grow when it died. However, he separated a fully -formed dome, though without the additional ornaments found on other packets.

Chanzorg says, “Z. Rinpoche is an important model for understanding the cranial dome development of fifty -fiftyfols, which has led to the absence of early bending or pre -late cratesis species and almost all patchyfolosurine fossils.”

How to explain whether the two skulls that look different are related to two separate species, or only the different growth stages of the same species have a long -standing debate for experts from this group studying, and there are zid runs.

Zano says, “Portyflosis are all about bowling, but we cannot use only shiny signaling structures to find out what species they belong to or what species they belong to or what growth are in the phase of the animals.

Zano added, “We are at the age of dinosaurs after seeing the growth ring in the bones, but most of the patchyfolosaur skeletons are just isolated, the scalp of the pieces.” “Z Rinpoche is an amazing search because it contains organs and a complete skull, which can help us develop the development stage and dome for the first time.”

By testing a thin piece of the sample lower leg bone, researchers vowed that, despite a fully -formed dome game, this Z Rinpoche was still a minor when he died.

Pachecephalosaurs are famous for their big dome skulls and are often shown to connect these dome to epic heading competitions. “The consensus is that these dinosaurs used the dome for social and sex,” Zano says. “Dome did not help hunters or for temperature rules, so they were most likely to appear and compete for peers.

She says, “If you need to attract yourself to a relationship, it is a good idea to start practicing soon.”

  • 'Teen' pachecephalosaur bits in fossil record

    Z Rinpoche Hands. Credit: Alfau Elsandro Cherinza

  • 'Teen' pachecephalosaur bits in fossil record

    Z. Rinpoche at the time of discovery. Credit: Sugatabar Chanzorg

Researchers say that Z Rinpoche fills in a huge gap in the fifty -five -follicles timeline – both of them are in the sense when they lived and how they grow.

“This sample is a discovery once in life,” Zano says. It is noteworthy for being the oldest final packetfolisor, which has left the group’s foam record behind for at least 15 million years, but the reason is that it is complete and well -protected. ” “The Z Rinpoche offers us an unprecedented glimpse of the anatomy and biology of the patchyflosis, which looks like their hands and they use stomach stones to grind food.”

Chanzorg says, “Zayed Rinpoche’s newly recovered materials, such as hand elements, stomach stones, and a clear tail with covered tendons, our understanding of our ‘mysterious’ dinosaurs, and give our understanding about a new understanding of our physical plan.

Okayama University of Science’s Reogy Takasaki; Jin Yoshida of the Fukushima Museum; Bitsakhan Bentegash, Boywei Menbir and Khishiju Sugatabat of the Institute of Pilotology of the Manovin Academy of Sciences; And Ryan Tucker of Stelon Bush University participated in the work.

More information:
Lindsay Zano, a dome from Mongolia’s early Cretesis, Pachasfolosor, Nature (2025) DOI: 10.1038/s41586-025-09213-6. www.nature.com/articles/S41586-025-09213-6

Provided by North Carolina State University

Reference: ‘Teen’ fiftyfolosor fossil is the oldest and most complete skeleton found to date (2025, 17 September) on 17 September 2025 https://phys.org/news/2025-09-0-pachycephalosaur-fossel-oldest-skeleton.htmle

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