Review: Pachycephalosaurus (Carnegie Collection by Safari Ltd)

4.1 (15 votes)
Pachycephalosaurus belongs to the general group of dinosaurs called marginocephalia which encompasses all the dome-headed pachycephalosaurs as well as all of the ceratopsians. Pachycephalosaurus itself was the largest of the dome headed dinosaurs, estimated to have grown to between fifteen or perhaps twenty feet in length.