Pachycephalosaurus
Period Late Cretaceous (70-66 million years ago)
Diet Herbivore
Length 4.5 meters (15 feet)
Weight 450 kg
The Thick-Headed Lizard
Pachycephalosaurus is a genus of pachycephalosaurid dinosaur. It is one of the last non-avian dinosaurs before the mass extinction event.
Unique Features
- Dome Skull: A skull roof up to 25 cm (10 inches) thick, possibly used for intraspecific combat.
- Bipedal: Walked on two legs with a stiff tail for balance.
- Herbivorous: Despite its aggressive appearance, it was a plant-eater with leaf-shaped teeth.