A group of dinosaurs called the pachycephalosaurs developed domed or thickened skull bones. The purpose of this adaptation is not clear, but there were several species of these bone-headed dinosaurs living in the late cretaceous. One of these was HOMALOCEPHALE, a small, flat-headed pachycephalosaur. This herbivore had a stiffened tail to help keep it balanced when it walked, and bony knobs on its skull. A nearly complete skeleton was found in Mongolia in 1901, but the behavior of this dinosaur cannot be determined as there has not been a discovery of a group bone bed or an egg site.

ORDER Ornithischia
SUBORDER Pachycephalosauria
FAMILY Homalocephalidae
DIET Herbivorous
SIZE 10 feet long
PERIOD Late Cretaceous
RANGE Mongolia


Copyright 2000 Neil Riehle