Koreanosaurus Facts
| Diet | Herbivore |
| Height | 0.8m |
| Length | 2m |
| Weight | 25 kg |
| Environment | Land |
| Era | Cretaceous |
| Period | Late Cretaceous |
| Type | Ornithopod |
| Location | South Korea |

| Diet | Herbivore |
| Height | 0.8m |
| Length | 2m |
| Weight | 25 kg |
| Environment | Land |
| Era | Cretaceous |
| Period | Late Cretaceous |
| Type | Ornithopod |
| Location | South Korea |
Koreanosaurus was a small ornithopod dinosaur that lived approximately 83.6 million years ago during the Campanian stage of the Late Cretaceous period in what is now South Korea. This nimble herbivore represents an important discovery in Asian palaeontology, being one of the few dinosaurs known from the Korean Peninsula.
Standing about 80 centimetres tall at the hip and measuring roughly 2 metres in length, Koreanosaurus was a relatively small dinosaur with a lightweight build adapted for swift movement. As an ornithopod, it belonged to the diverse group of bird-hipped dinosaurs that were primarily herbivorous. Its body structure suggests it was capable of both bipedal and quadrupedal locomotion, allowing it to run on its hind legs when escaping predators or drop to all fours whilst feeding on low-growing vegetation.
Like other members of its family, Koreanosaurus would have fed on ferns, cycads, and early flowering plants that were becoming more common during the Late Cretaceous. Its teeth were well-suited for processing plant material, with grinding surfaces that could break down tough vegetation. The dinosaur's relatively large eyes and alert posture would have helped it spot approaching predators in the forested environments of ancient Korea.
The discovery of Koreanosaurus has provided valuable insights into the diversity of small ornithopods in Asia during the Late Cretaceous, filling an important gap in our understanding of dinosaur evolution in this region.
Koreanosaurus was distinguished by its small, lightweight build and long legs relative to its body size, suggesting it was built for speed. Its skull featured relatively large eye sockets and a pointed snout typical of small ornithopods.
Koreanosaurus was likely a social animal that lived in small herds for protection against predators. Its agile build suggests it relied on speed and quick reflexes to escape danger, and it probably spent much of its time foraging for plants close to the ground.
Koreanosaurus was first described by Huh Min and Lee Dong-Gyu in 2011. The original fossils were discovered at Seonso Formation, Boseong County, South Korea.