Pachycephalosaurus wyomingensis

† Pachycephalosaurus wyomingensis is the largest known pachycephalosaur, a Late Cretaceous dome-headed dinosaur from the Hell Creek Formation. Approximately 4.5 m long, it had a dome up to 25 cm thick, possibly used in combat.

Diet & Feeding

Herbivore

Pachycephalosaurus wyomingensis was a plant-eating dinosaur. Herbivores typically fed on ferns, cycads, conifers, and other vegetation available during their era. Many herbivorous dinosaurs developed specialized teeth and digestive systems for processing tough plant material.

Time Period

Cretaceous Late Mesozoic Era

Pachycephalosaurus wyomingensis lived during the Cretaceous Late period of the Mesozoic Era, approximately 100,5 to 66,0 million years ago.

The final age of dinosaurs, featuring iconic species like Tyrannosaurus rex, Triceratops, and Velociraptor. Dinosaurs reached their peak diversity before the catastrophic asteroid impact at the Chicxulub crater ended the Mesozoic Era.