Dinosauria › Ornithischia › Pachycephalosauria › Pachycephalosauridae
Silhouette of Acrotholus

Acrotholus

Acrotholus audeti Evans et al. 2013

Late Cretaceous (Santonian) · 85.7–83.6 Mya
Key Statistics
Diet
herbivore
Locomotion
bipedal
inferred from clade
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 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%
fragmentary record
Confirmed
Inferred
Based on 1 recorded occurrences in the Paleobiology Database.
Geologic Time

Where Acrotholus sits in deep time

TRIASSIC
JURASSIC
CRETACEOUS
Acrotholus
252 Mya201 Mya145 Mya66 Mya
Relationships

Part of a wider fossil web

These species share Acrotholus's place in deep time — computed from overlapping age ranges, shared clades, and inferred ecology.

predator–prey
Parahesperornis
Parahesperornis alexi
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predator–prey
Neuquenornis
Neuquenornis volans
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predator–prey
Velocisaurus
Velocisaurus unicus
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coexisted–with
Gobihadros
Gobihadros mongoliensis
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coexisted–with
Segnosaurus
Segnosaurus galbinensis
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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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