Dinosauria›Ornithischia›Pachycephalosauria›Pachycephalosauridae
Silhouette of Acrotholus audeti

Acrotholus Acrotholus audeti Evans et al. 2013

/ˌækɹəθˈoʊləs/ estimated
Late Cretaceous (Santonian) · 85.7–83.6 Mya

Key Statistics

Diet
herbivore
Locomotion
bipedal
inferred from clade
Habitat
ground-dwelling
Social
herding

Where It Was Found

Country
Canada
Region
Alberta
Formation
Milk River
Dig sites
1
distinct collections
Recorded finds in Canada. Present-day positions: the continents have moved since.

Overview

Acrotholus audeti is a pachycephalosaur dinosaur known from the Late Cretaceous, roughly 85.7–83.6 million years ago. It was a herbivore. It is recorded as ground-dwelling and herding. Fossils have been recovered from Alberta, Canada. It was named by Evans et al. 2013. 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 Acrotholus audeti sits in deep time

TRIASSIC
JURASSIC
CRETACEOUS
Acrotholus
252 Mya201 Mya145 Mya66 Mya

Relationships

Part of a wider fossil web

These species share Acrotholus audeti'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.

coexisted–with
Gobihadros
Gobihadros mongoliensis
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coexisted–with
Parahesperornis
Parahesperornis alexi
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coexisted–with
Segnosaurus
Segnosaurus galbinensis
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coexisted–with
Neuquenornis
Neuquenornis volans
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coexisted–with
Velocisaurus
Velocisaurus unicus
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same–clade
Stegoceras
Stegoceras validum
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same–clade
Stegoceras
Stegoceras novomexicanum
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same–clade
Colepiocephale
Colepiocephale lambei
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