Omnisaura

Dinosaur genus

Compsognathus

Wagner 1861

Compsognathus is a dinosaur genus known from bones, found in rocks 154.8–145.1 million years old, in France, Germany and Portugal.

Confidence labels
How sure are we?1 high6 medium5 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 12 October 2026
154.8–145.1 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
Wagner 1861
disputedlow: Sources disagree and an editor has not ruled yet.
Sources

Given by: Paleobiology Database. How it was chosen: PBDB leads.

Described in
J. A. Wagner (1861). Neue Beiträge zur Kenntniss der urweltlichen Fauna des lithographischen Schiefers [New contributions to the knowledge of the ancient fauna of the lithographic slates]. Abhandlungen der königlichen bayerische Akademie der Wissenschaft, II Classe 9(1): 65–124.
mediummedium: Only PBDB gives this; its author and year match the naming authority (Wagner 1861).
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
Kimmeridgian to Tithonian, 154.8–145.1 million years ago
mediummedium: Only PBDB gives this; nothing contradicts it.
Omnisaura calculation154.8–145.1 million years ago, from its dated fossil records
mediummedium: Omnisaura's calculation from 4 confirmed PBDB records.
Sources

Given by: Paleobiology Database. How it was chosen: PBDB leads.

Fossils found in
France
mediummedium: Only PBDB records it (2 records).
Germany
lowlow: Only one PBDB record.
Portugal
lowlow: Only one PBDB record.
mixedmixed: Levels differ between entries; each has its own.
Sources

Given by: Paleobiology Database. How it was chosen: Union of all sources (ISO 3166).

Rock formations
Alcobaça
lowlow: Only one PBDB record.
Painten
lowlow: Only one PBDB record.
Sources

Given by: Paleobiology Database. How it was chosen: Canonical names, automatic and editor-approved matches applied.

Family
Compsognathidae
highhigh: PBDB and NHM agree.
Sources

Given by: Paleobiology Database; Natural History Museum Data Portal. How it was chosen: PBDB leads.

Parent group
Compsognathidae
mediummedium: Only PBDB gives this; nothing contradicts it.
Sources

Given by: Paleobiology Database. How it was chosen: PBDB leads.

Order
Saurischia
mediummedium: Only NHM gives this; nothing contradicts it.
Sources

Given by: Natural History Museum Data Portal. How it was chosen: Gap filled from NHM.

Known from
Bones
Sources

Given by: Paleobiology Database (what the name was based on).

Sources: Paleobiology Database (CC BY 4.0), Natural History Museum Data Portal (CC0 1.0), 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.
  • 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: 3 facts come from a single source with nothing against them (rated medium): parent group (PBDB); order (NHM); age (headline) (PBDB).

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

Where sources disagree

1 open

Authority

  • Wagner 1861PBDB (shown above)
  • Johann Andreas Wagner, 1859Wikidata

The sources give different values. An editor hasn't ruled yet, so this is rated low until they do.

Did it meet…?

?

No. Compsognathus had gone at least 61.5 million years before Tyrannosaurus appears in the fossil record.

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.

Same family

Other genera in Compsognathidae with a full profile.

Credits

Where this page comes from

  • Paleobiology DatabaseCC BY 4.0 · fossil records, ages, classification
  • Natural History Museum Data PortalCC0 1.0 · catalogued specimens
  • 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.