Doolysaurus is an extinct genus of thescelosaurid ornithischian dinosaur known from the Cretaceous (Albian–lower Cenomanian) Ilseongsan Formation of South Korea. The genus contains a single species, Doolysaurus huhmini, known from the partial skeleton of a small juvenile individual. It is the first named South Korean dinosaur with diagnostic cranial material, providing important insight into the early evolution of thescelosaurid ornithischians in East Asia, and the second named basal neornithischian from South Korea after Koreanosaurus.
Doolysaurus is an extinct genus of thescelosaurid ornithischian dinosaur known from the Cretaceous (Albian–lower Cenomanian) Ilseongsan Formation of South Korea. The genus contains a single species, Doolysaurus huhmini, known from the partial skeleton of a small juvenile individual. It is the first named South Korean dinosaur with diagnostic cranial material, providing important insight into the early evolution of thescelosaurid ornithischians in East Asia, and the second named basal neornithischian from South Korea after Koreanosaurus.
== Discovery and naming == thumb|left|Map of dinosaur body fossils discovered in South Korea, with Doolysaurus in green, left The Doolysaurus fossil material was discovered in 2023 by Hyemin Jo in outcrops of the Ilseongsan Formation on Aphae Island of Shinan, South Korea. The specimen is housed in the Korea Dinosaur Research Center of the Chonnam National University, where it is permanently accessioned as specimen KDRC-SA-V001. The specimen consists of an incomplete, yet three-dimensionally preserved, skeleton, including remains of the skull, vertebral column, forelimb, and hindlimb.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).