Dinosaur genus

Albertadromeus

Brown et al. 2013

Albertadromeus is a dinosaur genus known from bones, found in rocks 83.6–72.2 million years old, in the United States.

Confidence labels

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How sure are we?2 high5 medium4 lowHow we rate confidence

Confidence labels are switched off. Facts with low confidence, or where sources disagree, still carry a small dot: tap it for the reason.

At a glance

Data as of 11 October 2026

83.6–72.2 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: Brown et al. 2013
high
high: PBDB and Wikidata agree.
Sources
Given by: Paleobiology Database. How it was chosen: PBDB leads.
Described in: C. M. Brown, D. C. Evans, M. J. Ryan, A. P. Russell (2013). New data on the diversity and abundance of small-bodied ornithopods (Dinosauria, Ornithischia) from the Belly River Group (Campanian) of Alberta. Journal of Vertebrate Paleontology 33(3): 495–520. Read it
high
high: PBDB gives this publication for the name; its author and year match the naming authority (Brown et al. 2013), on which PBDB and Wikidata agree.
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.
Lived: Campanian, 83.6–72.2 million years ago
medium
medium: Only PBDB gives this; nothing contradicts it.
Omnisaura calculation83.6–72.2 million years ago, from its dated fossil records
low
low: Omnisaura's calculation from only 1 dated record(s).
Sources
Given by: Paleobiology Database. How it was chosen: PBDB leads.
Fossils found in: United States
low
low: Only one PBDB record.
Sources
Given by: Paleobiology Database. How it was chosen: Union of all sources (ISO 3166).
Rock formations: Oldman
low
low: Only one PBDB record.
Sources
Given by: Paleobiology Database. How it was chosen: Canonical names, automatic and editor-approved matches applied.
Family: Thescelosauridae
medium
medium: Only PBDB gives this; nothing contradicts it.
Sources
Given by: Paleobiology Database. How it was chosen: PBDB leads.
Parent group: Orodrominae
medium
medium: Only PBDB gives this; nothing contradicts it.
Sources
Given by: Paleobiology Database. How it was chosen: PBDB leads.
Named after: Alberta
medium
medium: Only Wikidata gives this; nothing contradicts it.
Sources
Given by: Wikidata. How it was chosen: Wikidata leads.
Species named in its records: Albertadromeus syntarsus
Sources
Given by: Paleobiology Database (the species its fossil records are identified as).
Diet: herbivore (inferred for its group)
medium
medium: Only PBDB gives this, and it infers it for the whole of Ornithischia, the group this genus belongs to, not from this genus's own fossils.
Sources
Given by: Paleobiology Database. How it was chosen: PBDB, inferred from a group the genus belongs to.
Way of life: ground dwelling, gregarious (inferred for its group)
low
low: PBDB infers this way of life for the whole of Ornithischia; behaviour is rarely known for one genus.
Sources
Given by: Paleobiology Database. How it was chosen: PBDB, inferred from a group the genus belongs to.
Known from: Bones
Sources
Given by: Paleobiology Database (what the name was based on).

Sources: Paleobiology Database (CC BY 4.0), Wikidata (CC0 1.0)Confidence levels and gaps are Omnisaura's own assessment.

Gaps are answers

What isn't known yet

Type species: no source we use gives it yet.
Order: no source we use gives it yet.
Common names: no source we use gives it yet.
Resting on one source: 5 facts come from a single source with nothing against them (rated medium): parent group (PBDB); family (PBDB); age (headline) (PBDB); named after (Wikidata); diet (PBDB).

Size and appearance aren't covered yet, and diet and way of life only as PBDB infers them for the wider group. Omnisaura leaves the rest out rather than guess.

Where sources disagree

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

Did it meet…?

Did Albertadromeus meet ?

Same time, different places. Their fossils overlap in age, 83.6 to 72.2 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.

Connections

Genera linked to Albertadromeus by where and when their fossils were found, by classification and by who named them. Select a name to open its page.

Same rocks, same time 38

Genera found in the same rock units, from rocks of overlapping age, the most shared fossil sites first.

Saurornitholestes Troodon Richardoestesia Paronychodon Dromaeosaurus Daspletosaurus Stenonychosaurus Struthiomimus Centrosaurus Monoclonius Continuoolithus Porituberoolithus Spheroolithus Brachylophosaurus Coronosaurus Corythosaurusand 22 more

Same family: Thescelosauridae 11

Other genera in Thescelosauridae with a full profile.

Changchunsaurus Changmiania Fona Haya Jeholosaurus Koreanosaurus Orodromeus Oryctodromeus Parksosaurus Thescelosaurus Zephyrosaurus

Named by Brown 11

Genera whose naming authority includes the same surname. The authority has no initials, so different people who share a surname can appear together.

Anchiceratops Ankylosaurus Borealopelta Corythosaurus Dromaeosaurus Hypacrosaurus Kritosaurus Leptoceratops Pachycephalosaurus Prosaurolophus Saurolophus

Found in United States 82

Other genera found in United States, from rocks of overlapping age, the most fossil sites there first.

Saurornitholestes Stegoceras Agujaceratops Richardoestesia Kritosaurus Troodon Parasaurolophus Daspletosaurus Paronychodon Pentaceratops Gryposaurus Hypacrosaurus Ornithomimus Appalachiosaurus Orodromeus Utahceratopsand 66 more

Where its fossils were found

1 fossil site, with present-day and ancient positions

Open the map at this time

Cite this page

Omnisaura (2026). Albertadromeus. Future Sailors. https://www.omnisaura.com/genera/albertadromeus. Data as of 11 October 2026.

What's changed

12 Oct 2026
Added to Omnisaura.

Every change to Omnisaura

Use this data

Download this genus as JSON With every source and licence attached. Also recorded in: Paleobiology Database · Wikipedia (English) · GBIF · Wikidata Spotted a problem? Tell us

Pictures

1 openly licensed picture of Albertadromeus on Wikimedia Commons and museum sites, each with its own author and licence.

Albertadromeus LM.png
Levi Martinez-Reza, CC BY-SA 3.0

Credits

Where this page comes from

Paleobiology DatabaseCC BY 4.0 · fossil records, ages, classification
WikidataCC0 1.0 · names and identifiers
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

Pictures linked from this page are credited beside each one, with their own licences; the full list is in the JSON download.