Dinosaur
Achelousaurus
Its large head ended in a hooked beak.
The skulls of Achelousaurus allow us to follow changes in the head at different ages.
Three stages. One companion.
Game artwork
AI-generated, stylized game illustrations. These designs and growth stages are imaginative, not scientific reconstructions.
Achelousaurus at a glance
- Diet
- Herbivore
- A plant-based diet is inferred from its anatomy and comparisons with related animals; not all herbivores ate the same plants.
- When it lived
- Cretaceous
- Group
- Ceratopsidae
- Ceratopsids
- Fossil locations
- Montana
- Places where fossils have been found
Beyond the game
The real Achelousaurus
The known specimens mainly include cranial material from individuals of different ages. Its study allows us to compare head changes within ceratopsians.
Its large head ended in a hooked beak. Looking at several stages helps avoid a common confusion: some differences between fossils may be due to growth, without each form having to represent a new species.
This family includes large dinosaurs with beaks, frills, and horns or bony bumps. These structures help distinguish lineages, but their shape alone cannot establish each species’ behavior.
Fossil discoveries
Selected fossil records · present-day map
Map references
Map: Natural Earth, public domain. Fossil records: linked collections and publications.Sources & text credits
Explore the references behind this profile.
- Achelousaurus horneri
Wikipedia contributors · Spanish source
Educational text adapted and translated from this article by Wikipedia contributors. The revision link, when captured in the source catalogue, identifies the source version.
- Achelousaurus
Wikipedia contributors · English source
Educational text adapted and translated from this article by Wikipedia contributors. The revision link, when captured in the source catalogue, identifies the source version.
- Ceratopsidae
Wikipedia contributors · English source
Educational text adapted and translated from this article by Wikipedia contributors. The revision link, when captured in the source catalogue, identifies the source version.
- Living birds
Wikipedia contributors · English source
Educational text adapted and translated from this article by Wikipedia contributors. The revision link, when captured in the source catalogue, identifies the source version.
Educational text adapted in English from the existing Wikipedia-backed Dinosgacha catalogue and linked articles by Wikipedia contributors.
Existing English translations have been selected and arranged for this encyclopedia. Repeated period and diet text is omitted where those fields already carry it. Unknown facts remain unfilled; unreviewed geological age phrases are omitted and period labels replace numerical ages.
The adapted educational text is available under CC BY-SA 4.0. This text license does not apply to the game illustrations.