Dinosauria › Ornithischia
Pachycephalosaurus
Pachycephalosaurus wyomingensis (Gilmore 1931)
Late Cretaceous (Maastrichtian) · 83.6–66 Mya
Key Statistics
Diet
herbivore
Locomotion
bipedal
inferred from clade
Overview
Pachycephalosaurus wyomingensis is a pachycephalosaur dinosaur known from the Late Cretaceous, roughly 83.6–66.0 million years ago. It was a herbivore. It was named by (Gilmore 1931). The species is represented by 26 recorded occurrences in the Paleobiology Database.
Fossil Record Completeness
How much of this profile is grounded in the fossil record
~65%
confidence from occurrence count
Confirmed
Inferred
Based on 26 recorded occurrences in the Paleobiology Database.
Geologic Time
Where Pachycephalosaurus sits in deep time
Pachycephalosaurus
252 Mya201 Mya145 Mya66 Mya
Relationships
Part of a wider fossil web
These species share Pachycephalosaurus's place in deep time — computed from overlapping age ranges, shared clades, and inferred ecology.