In South Korea, a playful inexperienced cartoon dinosaur named Dooly, recognized for the 2 small tufts of hair on his head, has been a favourite for generations. So when scientists uncovered a brand new species of younger dinosaur on Aphae Island, the identify got here naturally: Doolysaurus.
“Dooly is likely one of the very well-known, iconic dinosaur characters in Korea. Each technology in Korea is aware of this character,” mentioned Jongyun Jung, a visiting postdoctoral researcher at UT’s Jackson Faculty of Geosciences who led the analysis. “And our specimen can be a juvenile or ‘child’, so it is good for our dinosaur species identify to honor Dooly.”
First New Dinosaur Species in Korea in 15 Years
This discovery marks the primary new dinosaur species recognized in South Korea in 15 years. It’s also the primary fossil from the nation to incorporate elements of a dinosaur cranium.
Initially, researchers solely noticed just a few bones, together with elements of the legs and backbone. Nevertheless, a micro-CT scan performed on the College of Texas Excessive-Decision X-ray Computed Tomography (UTCT) facility revealed far more hidden contained in the rock, together with cranium fragments.
“After we first discovered the specimen, we noticed some leg bones preserved and a few vertebrae,” Jung mentioned. “We did not anticipate cranium elements and so many extra bones. There was a good quantity of pleasure after we noticed what was hidden contained in the block.”
Meet Doolysaurus huhmini
The species has been formally named Doolysaurus huhmini. The second a part of the identify honors Korean paleontologist Min Huh for his a long time of contributions to dinosaur analysis in Korea, in addition to his position in founding the Korean Dinosaur Analysis Heart and serving to protect fossil websites by UNESCO.
The findings had been printed within the journal Fossil File on March 19. The fossil itself was found in 2023 by co-author Hyemin Jo.
What the Child Dinosaur Regarded Like
The younger dinosaur was about two years previous when it died and was nonetheless rising. It measured roughly the dimensions of a turkey, although adults of the species could have been twice as giant. Scientists additionally assume it could have been coated in mushy, fuzzy filaments.
“I believe it could have been fairly cute,” mentioned examine co-author Julia Clarke, a professor on the Jackson Faculty. “It may need regarded a bit like slightly lamb.”
CT Scanning Reveals Hidden Fossil Particulars
Many of the fossil stays encased in laborious rock, and manually eradicating it may take years. As a substitute, researchers relied on micro-CT scanning, which allowed them to visualise the total skeleton in just some months.
Jung and Clarke, together with their collaborators, then spent greater than a yr finding out the anatomy intimately. Clarke famous that CT scanning has develop into a necessary technique for finding out delicate fossils, particularly small dinosaurs and early birds trapped in stable rock.
Life within the Mid-Cretaceous Interval
Doolysaurus lived between about 113 and 94 million years in the past throughout the mid-Cretaceous interval. Based mostly on its options, scientists categorized it as a thescelosaurid, a gaggle of two-legged dinosaurs present in East Asia and North America that will have had fuzzy coverings.
Researchers confirmed that the fossil belonged to a juvenile by analyzing progress patterns in a skinny part of its femur bone.
Eating regimen Clues From Abdomen Stones
Contained in the fossil, scientists additionally discovered dozens of gastroliths, small stones that the dinosaur swallowed to assist digest meals. These stones counsel the animal had an omnivorous food plan that included vegetation, bugs, and small animals.
The presence of those stones additionally inspired researchers to analyze additional. As a result of gastroliths are small and lightweight, their intact association indicated that a lot of the skeleton would possibly nonetheless be preserved inside the rock.
“Somewhat cluster of abdomen stones, with two leg bones protruding signifies that the animal was not totally pulled aside earlier than it has hit the fossil report,” Clarke mentioned. “So, I inspired [Jung and co-authors Minguk Kim and Hyemin Jo] to go to Texas and the UTCT, to attempt scanning the fossil.”
Extra Discoveries Could Be Hidden in Rock
Kim and Jo at the moment are making use of the CT scanning strategies they discovered to different fossils in Korea. Jung additionally plans to return to Aphae Island to seek for further specimens.
South Korea is well-known for fossilized dinosaur tracks, nests, and eggs, however precise dinosaur bones are comparatively uncommon. Researchers consider that many fossils should still be hidden inside rock, identical to Doolysaurus.
Jung is optimistic that continued use of micro-CT expertise will uncover extra discoveries.
“We’re anticipating some new dinosaur or different egg fossils to come back from Aphae and different small islands,” he mentioned.
