Pachycephalosaur

The Dome-Headed Dinosaurs

Pachycephalosaurs were dinosaurs known for their thick, dome-shaped skulls during the Late Cretaceous period, about 70 to 65 million years ago.

Their name means “thick-headed lizard” in Greek, highlighting their most distinctive feature.

These bipedal dinosaurs walked on two legs and had relatively small bodies but incredibly thick and sturdy skulls.

Scientists believe Pachycephalosaurs used their thick skulls for head-butting contests, possibly to establish dominance or during courtship displays.

Despite their tough skulls, Pachycephalosaurs were herbivores, primarily eating plants like ferns and cycads.