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Pachycephalosaurus wyomingensis

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description Pachycephalosaurus wyomingensis Overview

Pachycephalosaurus wyomingensis was a large pachycephalosaurid dinosaur from the latest Cretaceous rocks of western North America. It is recognized by a massively thickened, rounded skull dome bordered by knobs and short spikes, while the rest of its skeleton is less completely known. The dome may have served in visual display, combat, or both, but the precise behavior associated with it remains debated.

help Pachycephalosaurus wyomingensis FAQ

What was the thick skull dome of Pachycephalosaurus used for?

Pachycephalosaurus wyomingensis had a massively thickened, rounded skull dome that scientists have long hypothesized was used for head-butting during intraspecific combat. However, some researchers have proposed alternative explanations involving flank-butting or display, and the biomechanics remain debated.

When and where did Pachycephalosaurus live?

Pachycephalosaurus wyomingensis lived during the latest Cretaceous period in western North America. Its fossils come from formations such as the Hell Creek Formation, which dates to the very end of the age of dinosaurs.

How complete is the Pachycephalosaurus fossil record?

The skeleton of Pachycephalosaurus is less completely known than its distinctive skull dome, which is the most commonly preserved part. Much of the postcranial skeleton has been reconstructed by inference from related pachycephalosaurid dinosaurs.

Was Pachycephalosaurus a predator or a plant-eater?

Pachycephalosaurus is generally considered to have been an omnivore or herbivore, based on its small, ridged teeth which were better suited for processing plant material than tearing meat. Its exact diet remains uncertain due to the incompleteness of the known fossil material.

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