Pachyrhinosaurus Pachyrhinosaurus perotorum Fiorillo and Tykoski 2012
/pˌækɪɹˌaɪnəsˈɔːɹəs/
estimated
Late Cretaceous (Maastrichtian) · 72.2–66 Mya
Key Statistics
Diet
herbivore
Locomotion
quadrupedal
inferred from clade
Habitat
ground-dwelling
Where It Was Found
Country
United States
Region
Alaska
Formation
Prince Creek
Dig sites
1
distinct collections
Overview
Pachyrhinosaurus perotorum is a ceratopsian dinosaur known from the Late Cretaceous, roughly 72.2–66.0 million years ago. It was a herbivore. It is recorded as ground-dwelling. Fossils have been recovered from Alaska, United States. It was named by Fiorillo and Tykoski 2012. The species is represented by 1 recorded occurrence in the Paleobiology Database.
Fossil Record Completeness
How much of this profile is grounded in the fossil record
~5%
confidence from occurrence count
Based on 1 recorded occurrence in the Paleobiology Database.
Geologic Time
Where Pachyrhinosaurus perotorum sits in deep time
Pachyrhinosaurus
252 Mya201 Mya145 Mya66 Mya
Relationships
Part of a wider fossil web
These species share Pachyrhinosaurus perotorum's place in deep time — computed from overlapping age ranges, shared clades, and inferred ecology. Predator–prey pairs additionally have to have been dug up in the same place.