Pachycephalosaurus heads only reached total lengths of two feet or so. In case you’re curious, human men and women have an average skull thickness of 6.5 and 7.1 millimeters, respectively. 2.

Pachycephalosaurus wyomingensis was the largest of the pachycephalosaurids—"thick-headed dinosaurs"—which featured extremely thick skullcaps. The top of a Pachycephalosaurus skull could be 9 ...

Partway down the list of household dinosaur names, you may know the pachycephalosaurus. Even if you don’t recognize that formality, the dome-shaped head of this creature is notorious, much thanks to ...