Tag: South Korea

Fossil X-ray Reveals New Species of Baby Dino Named after Iconic Korean Cartoon

Named Doolysaurus huhmini, this baby dinosaur was discovered on South Korea’s Aphae Island.

Cute, green, and sporting two sprigs of hair on his head, a mischievous baby dinosaur named Dooly is one of the most beloved cartoon characters in South Korea.

So, when researchers from The University of Texas at Austin and the Korean Dinosaur Research Center discovered a new species of baby dinosaur from Korea’s Aphae Island, they knew exactly what to call it: Doolysaurus.

“Dooly is one of the very famous, iconic dinosaur characters in Korea. Every generation in Korea knows this character. And our specimen is also a juvenile or ‘baby’, so it’s perfect for our dinosaur species name to honor Dooly.”

Jongyun Jung, lead researcher and a visiting postdoctoral researcher at UT’s Jackson School of Geosciences
  • The newly discovered dinosaur species is named after the popular South Korean cartoon Dooly the Little Dinosaur. The titular Dooly is on the left. Credit: ⓒDoolynara.
  • Dooly the Little Dinosaur (on left) with other characters from the popular cartoon. Credit: ⓒDoolynara.

The baby dinosaur is the first new dinosaur species discovered in Korea in 15 years and the first Korean dinosaur fossil found with portions of its skull. The skull bones were revealed when the fossil underwent a scientific micro-CT scan at the University of Texas High-Resolution X-ray Computed Tomography (UTCT) facility.

“When we first found the specimen, we saw some leg bones preserved and some vertebrae. We didn’t expect skull parts and so many more bones. There was a fair amount of excitement when we saw what was hidden inside the block.” 

Jongyun Jung

Research on the dinosaur, whose scientific name is Doolysaurus huhmini, is published in the open-access journal Fossil Record. The name huhmini honours the Korean paleontologist Min Huh, who has contributed to the study of Korean dinosaurs over the past 30 years, founded the dinosaur center, and worked with UNESCO to preserve dinosaur fossil sites in Korea. The fossil was discovered in 2023 by co-author Hyemin Jo, a researcher at the dinosaur center.

Researchers from The University of Texas at Austin and the Korean Dinosaur Center with a possible dinosaur skeleton on Aphae Island. From left to right: Julia Clarke, Min Huh, Hyemin Jo, Jongyun Jung. Credit: Jongyun Jung.

The dinosaur found by Jo is estimated to be about two years old and was still growing when it died. It’s about the size of a turkey, but an adult Doolysaurus may have grown to twice that size. It also may have been covered in a coat of fuzzy filaments.

“I think it would have been pretty cute. It might have looked a bit like a little lamb.”

Julia Clarke, study co-author and a professor at the Jackson School

The fossil is largely encased by hard rock, which can take close to a decade for a trained preparator to excavate by hand. But analysis of the micro-CT scan revealed the full extent of the fossil in a few months. Jong and Clarke then spent more than a year analysing the anatomy with their coauthors. CT technology has become a critical tool for revealing delicate fossils, such as birds and small non-avian dinosaurs, fossilised in hard rocks, said Clarke.

Doolysaurus lived about 113-94 million years ago during the mid-Cretaceous. Based on its anatomy, the researchers classified it as a thescelosaurid, a type of bipedal dinosaur that lived in East Asia and North America that may have had a fuzzy coat. Researchers could tell it was a juvenile based by observing growth markers on a thin slice of femur bone.

Study co-authors Minguk Kim (left) and Hyemin Jo during the initial discovery and excavation of Doolysaurus. Credit: Jongyun Jung.

The fossil also contained dozens of gastroliths, pebbles that the baby dinosaur swallowed in life to help with digesting food. The stones suggest that the dinosaur was an omnivore, eating plants, insects and small animals. They are also what prompted the researchers to look closer and scan the fossil. That’s because gastroliths are small and light-weight, and the fact that they had remained in place suggested that other parts of the fossil may still be there too.

“A little cluster of stomach stones, with two leg bones sticking out indicates that the animal was not fully pulled apart before it has hit the fossil record,” Clarke said. “So, I encouraged [Jung and co-authors Minguk Kim and Hyemin Jo] to visit Texas and the UTCT, to try scanning the fossil.”

Julia Clarke
The skeletal anatomy of a juvenile Doolysaurus huhmini. The graphic highlights the fossil bones that were found with the dinosaur. Artwork: Janet Cañamar, adapted from Jung et al 2026.

Kim and Jo are using the CT analysis skills they learned at the Jackson School to study more fossils in Korea. Jung is planning a trip back to Aphae Island to collect more fossils. South Korea is known for fossils of dinosaur tracks, nests, and eggs. While rich in these “trace” fossils, it has a noticeable dearth of actual dinosaur bones.

Jung said it’s possible that, like Doolysaurus, they’re largely hidden in the rock. He’s hopeful that micro-CT technology can lead to even more dinosaurs finds in Korea.

“We’re expecting some new dinosaur or other egg fossils to come from Aphae and other small islands,” he said.

Jongyun Jung

Original source:

Jung J, Kim M, Jo H, Clarke JA (2026) A new dinosaur species from Korea and its implications for early-diverging neornithischian diversity. Fossil Record 29(1): 87-113. https://doi.org/10.3897/fr.29.178152

Cover image:

An artist’s interpretation of a juvenile Doolysaurus huhmini. It is depicted alongside birds and other dinosaurs that lived during the Cretaceous in what is now South Korea. Artwork by Jun Seong Yi.

Reposted with permission from The University of Texas Jackson School of Geosciences.

For more articles on palaeontology, visit the Fossil Record website and follow the journal on BlueSky and Facebook.

Cave snail from South Korea suggests ancient subterranean diversity across Eurasia

As tiny as 1.7 mm, a snail whose relatives live exclusively in the deep recesses of caves, provided a sensational discovery from the depths of Nodong cave, South Korea, back in 2000 for its collector, J. S. Lee. It is the only cave-dwelling representative of the family of hollow-shelled snails in the whole of Asia with its closest relatives known from as far as Croatia and Northern Spain. The scientists, Adrienne Jochum, Bern University and Natural History Museum Bern, Larisa Prozorova and Mariana Sharyiool from the Far Eastern Russian Academy of Sciences and Barna Páll-Gergely from Shinshu University, published its description in the open-access journalZooKeys.

The Asian species has awaited 15 years to come out of the dark for a name and into the limelight of subterranean biodiversity and conservation awareness. This barely visible snail suggests a former pan-Eurasian distribution of cave-dwelling, hollow-spired snails.

The tiny-shelled treasure, called Koreozospeum nodongense, belongs to a larger group of ancient cosmopolitan air-breathing relatives known to have been amongst the first snail colonisers of land via mangroves about 65 million years ago. Similar to its European relatives from the genus Zospeum, the South Korean snail was also found on muddy cave walls.

Although more than 1,000 caves have been explored in South Korea, Nodong is so far the only one to harbour these beautiful denizens of the dark. Hypotheses made by Culver et. al. in 2006 about the existence of a very narrow, mid-latitudinal ridge of subterranean biodiversity (ca. 42-46°N in Europe and 33-35°N in North America) might clarify this unique find.

A high amount of caves known to exist within these latitudes provide ample habitats for colonisation of life. If this hypothetical ridge were to be extended further East away from Europe, then Koreozopseum‘s gliding along walls in a South Korean cave (33-35°N) makes a strong call for further investigations and discovery of rare biodiversity.

Jochum and her international team described K. nodongense using computer tomographic scans (Nano-CT) in a video film to view and compare the contours and architecture of the very fragile shell. Chemical trace elements, such as aluminum (Al) and silicon (Si) were detected in other scans of the thin diaphanous shell using mineralogical analysis techniques (SEM-EDX). These elements may play a role in the biomineralization (hardness) of the shell or may be contaminants absorbed by the snail from sediment consisting of volcanic ash from former eruptions in the region.

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Original Source:

Jochum A, Prozorova L, Sharyi-ool M, Páll-Gergely B (2015) A new member of troglobitic Carychiidae, Koreozospeum nodongense gen. et sp. n. (Gastropoda, Eupulmonata, Ellobioidea) is described from Korea. ZooKeys 517: 39-57. doi: 10.3897/zookeys.517.10154

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Additional information:

The Naturhistorisches Museum der Burgergemeinde Bern, Switzerland and the Far Eastern Branch of the Russian Academy of Sciences supported this work.