Dinosaur genus

Calvarius

Prieto-Márquez and Sellés 2023

Calvarius is a dinosaur genus known from bones, found in rocks 72.2–66 million years old, in Spain.

Confidence labels

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At a glance

Data as of 12 October 2026

72.2–66 Ma

Triassic

Jurassic

Cretaceous

252 million years ago20114366

The last non-bird dinosaurs died out 66 million years ago. That's as far from us as the end of this bar.

Named by: Prieto-Márquez and Sellés 2023
medium
medium: Only PBDB gives this; nothing contradicts it.
Sources
Given by: Paleobiology Database. How it was chosen: PBDB leads.
Described in: A. Prieto-Márquez, A. Sellés (2023). Evolutionary convergence in a small cursorial styracosternan ornithopod dinosaur from western Europe. Journal of Vertebrate Paleontology 42(5): e2210632:1–17. Read it
medium
medium: Only PBDB gives this; its author and year match the naming authority (Prieto-Márquez and Sellés 2023).
Sources
Given by: Paleobiology Database. The publication the Paleobiology Database gives as the authority for this genus name, usually the one that first named and described it.
Type species: Calvarius rapidus
medium
medium: Only PBDB gives this; nothing contradicts it.
Sources
Given by: Paleobiology Database. How it was chosen: PBDB leads.
Lived: Maastrichtian, 72.2–66 million years ago
medium
medium: Only PBDB gives this; nothing contradicts it.
Omnisaura calculation72.2–66 million years ago, from its dated fossil records
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low: Omnisaura's calculation from only 1 dated record(s).
Sources
Given by: Paleobiology Database. How it was chosen: PBDB leads.
Fossils found in: Spain
low
low: Only one PBDB record.
Sources
Given by: Paleobiology Database. How it was chosen: Union of all sources (ISO 3166).
Rock formations: Talarn
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low: Only one PBDB record.
Sources
Given by: Paleobiology Database. How it was chosen: Canonical names, automatic and editor-approved matches applied.
Parent group: Styracosterna
medium
medium: Only PBDB gives this; nothing contradicts it.
Sources
Given by: Paleobiology Database. How it was chosen: PBDB leads.
Known from: Bones
Sources
Given by: Paleobiology Database (what the name was based on).

Sources: Paleobiology Database (CC BY 4.0)Confidence levels and gaps are Omnisaura's own assessment.

Gaps are answers

What isn't known yet

Order: no source we use gives it yet.
Family: no source we use gives it yet.
Common names: no source we use gives it yet.
What it was named after: no source we use gives it yet.
Resting on one source: 5 facts come from a single source with nothing against them (rated medium): name (PBDB); authority (PBDB); type species (PBDB); parent group (PBDB); age (headline) (PBDB).

Size, diet and behaviour aren't covered yet. Omnisaura leaves them out rather than guess.

Where sources disagree

None open. Where our sources overlap, they agree on everything shown here.

Did it meet…?

Did Calvarius meet ?

Same time, different places. Their fossils overlap in age, 72.2 to 66 million years ago, but no rock formation holds both.

Going by the ages and rock formations of their dated fossils, as on the map. Compare their fossil sites on the map.

Lived alongside

Genera found in the same rock formations, from rocks of the same age.

Pararhabdodon Fusioolithus Megaloolithus

Same parent group

Other genera in Styracosterna with a full profile.

Cumnoria Dakotadon Delapparentia Iguanacolossus

Credits

Where this page comes from

Paleobiology DatabaseCC BY 4.0 · fossil records, ages, classification
OmnisauraOmnisaura editorial · confidence levels and gaps
PaleoMAP PaleoCoastlines (Kocsis and Scotese 2021)CC BY 4.0 · ancient coastlines on the small map
Natural EarthPublic domain · today's coastlines