This is kind of cool. A new species of pachycephalosaur (Friar Tuck in "The Lost World") has been found. Unlike most pachycephalosaurs it has a flat skull - rather than the more familiar rounded skull.
A fossil found in South Dakota is that of a never before seen species of dinosaur, a horse-sized plant eater with spikes on its bony flat head, scientists said on Monday. 'When my colleagues saw a CAT scan of the new fossil, they tore up their family tree diagrams and said, 'Back to the drawing board!' ... We never suspected such a creature existed,' said paleontologist Robert Bakker.
More details here .
