Pachycephalosaurus wyomingensis (meaning "thick-headed lizard") is a genus of pachycephalosaurid dinosaur that lived at the late cretaceous period, 66 million years ago. Pachycephalosaurus means thick-headed lizard, because it had a bony dome on its skull. It used its skull for fighting donimants, hurting predators, and mating.
Discovery and Naming
Description
Classification
Pachycephalosaurus is the largest member of the Pachycephalosaurid family and its cousins are Dracorex, Homalocephale, Microcephale, Prenocephale, Stegoceras, Stygimoloch, and Wannanosaurus. All species had dome-shaped heads and walked on two legs.
Paleobiology
Paleoecology
Gallery
