The work, presented this week at the Society of Vertebrate Paleontology's annual meeting in Raleigh, North Carolina, started with just one pachycephalosaur fossil. (scientificamerican.com)
On the basis of these examples, Peterson and Dischler speculate that the high - domed pachycephalosaurs with parietal injuries were side - bumping like mountain goats, and that the frontal injuries are indicative of bison - like wrestling. (scientificamerican.com)
The massively constructed skull domes of pachycephalosaurs are resistant to destruction, and are much more common than their relatively delicate skeletons — which resemble those of other small plant - eating dinosaurs. (sciencedaily.com)