Dinosauria › Ornithischia › Ornithopoda › Hadrosauridae
Silhouette unavailable

Acristavus

Acristavus gagslarsoni Gates et al. 2011

Late Cretaceous (Campanian) · 83.6–72.2 Mya
Key Statistics
Diet
herbivore
Locomotion
bipedal
inferred from clade
Overview

Acristavus gagslarsoni is an ornithopod dinosaur known from the Late Cretaceous, roughly 83.6–72.2 million years ago. It was a herbivore. It was named by Gates et al. 2011. The species is represented by 2 recorded occurrences in the Paleobiology Database.

Fossil Record Completeness

How much of this profile is grounded in the fossil record

~8%
fragmentary record
Confirmed
Inferred
Based on 2 recorded occurrences in the Paleobiology Database.
Geologic Time

Where Acristavus sits in deep time

TRIASSIC
JURASSIC
CRETACEOUS
Acristavus
252 Mya201 Mya145 Mya66 Mya
Relationships

Part of a wider fossil web

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

predator–prey
Ichthyornis
Ichthyornis dispar
View profile →
predator–prey
Hesperornis
Hesperornis regalis
View profile →
predator–prey
Gorgosaurus
Gorgosaurus libratus
View profile →
coexisted–with
Centrosaurus
Centrosaurus apertus
View profile →
coexisted–with
Stegoceras
Stegoceras validum
View profile →
coexisted–with
Protoceratops
Protoceratops andrewsi
View profile →
same–clade
Gasparinisaura
Gasparinisaura cincosaltensis
View profile →
same–clade
Talenkauen
Talenkauen santacrucensis
View profile →