Pachycephalosaurs were the kings of head butting

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For decades there's been a long running debate in the paleontological community about whether the thick-skulled pachycephalosaurs used their immense noggins for head-butting, flank-butting, or peacock-like displays of awesomeness. A new research paper published in PLos One adds more weight to the head-butting side of the debate.

Researchers analyzed a skull from a Stegoceras validum, a type of pachycephalosaur, and compared it to the skulls of modern head-butting animals like duiker, elk, and musk oxes. Using CT scans and statistical analyses of the fossils, they found the dinosaur's skull was as well-suited to cracking heads as any of the modern mammals, if not more so. Not only is the bone in the skull arranged in such a way to minimize brain-harming impacts and dissipate strain, but the large neck muscles and dense cortical bones argue for animals ready to run into each other at full speed.



Stygimoloch is much more interesting.

("Child-eater from Styx")