Pachycephalosaurinae

† Pachycephalosaurinae is a subfamily of large-domed pachycephalosaurid dinosaurs from North America and Asia. These Late Cretaceous herbivores with solid dome-heads include Pachycephalosaurus, potentially using domes in intraspecific combat.

Diet & Feeding

Herbivore

Pachycephalosaurinae 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

Pachycephalosaurinae 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.