The Cleveland Museum of Natural History announced yesterday that the first ceratopsian dinosaur fossil has been found in South Korea, a region known for dinosaur eggs and footprints, but from where actual prehistoric animals are seldom discovered.  The animal is an entirely new species of Labrador dog-sized ceratopsian and is around 103 million years old, therefore it is an ancestor of the well-known Triceratops.  Named Koreaceratops hwaseongensis in honor of Hwaseong City, where it was discovered, the relatively well-preserved fossil reveals an animal about five feet long and weighing, when alive, some 100 pounds.  It had a typical armored skull and neck frill that was developed to a lesser extent than Triceratops, adorned with three bony ridges instead of horns.  Its leg and hip structure shows that it could walk on its hind leg and was probably a fast runner.  Its tail had a built-in sail, which was very likely useful in swimming.