Dinosaurs! -Pachycephalosaurus

Pachycephalosaurus
"Thick-Headed Reptile"

Order: Ornithischia
Suborder: Marginocephalia
Family:Pachycephalosauridae

Physical Characteristics

15' long

10"-thick domed skull ornamented with knobs and spines.

Strong hind limbs and shorter forelimbs equipped with clasping hands.

3-toed foot with heavy hoof-like nails.

Herbivorous

Bipedal

Fossil Sites

North America (Alberta)

Geologic Age

Late Cretaceous

Paleo Notes

It is still not completely known what the purpose of the thick dome on the skull was. It may have been used in head-butting battles such as bighorn sheep engage in. It also may have been a secondary sex characteristic being used to attract the opposite sex.

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