Omnisaura
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Dinosaur genus

Craspedodon

Bittner 1901

Craspedodon is a dinosaur genus known from bones, found in rocks 89.8–83.6 million years old, in Belgium.

Confidence labels
How sure are we?0 high6 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 12 October 2026
89.8–83.6 Ma
Triassic
Jurassic
Cretaceous
252 million years ago20114366

Solid: the ages of its dated fossils, 89.8–83.6 million years ago (Omnisaura's calculation). Pale: the published range, 237–227.3 million years ago, which also counts records Omnisaura leaves out.

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
Bittner 1901
mediummedium: Only PBDB gives this; nothing contradicts it.
Sources

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

Described in
A. Bittner (1901). Lamellibranchiaten aus der Trias des Bakonyer Waldes [Bivalves from the Triassic of the Bakony Forest]. Resultate der Wissenschaftlichen Erforschung des Balatonsees, II Band: Paläontologie der Umgebung des Balatonsees 1(3): 1–107.
mediummedium: Only PBDB gives this; its author and year match the naming authority (Bittner 1901).
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
Cornucardia hornigii
mediummedium: Only PBDB gives this; nothing contradicts it.
Sources

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

Lived
Carnian, 237–227.3 million years ago
disputedlow: Sources disagree and an editor has not ruled yet.
Omnisaura calculation89.8–83.6 million years ago, from its dated fossil records
lowlow: Omnisaura's calculation from only 1 dated record(s).
Sources

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

Fossils found in
Belgium
lowlow: Only one PBDB record.
Sources

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

Rock formations
Glauconie de Lonzée
lowlow: Only one PBDB record.
Sources

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

Family
Dicerocardiidae
mediummedium: Only PBDB gives this; nothing contradicts it.
Sources

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

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

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

Order
Megalodontida
mediummedium: 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

  • Common names: no source we use gives it yet.
  • What it was named after: no source we use gives it yet.
  • Held back: 12 fossil records left out: identified as a related genus rather than this one.
  • Resting on one source: 6 facts come from a single source with nothing against them (rated medium): name (PBDB); authority (PBDB); type species (PBDB); parent group (PBDB); family (PBDB); order (PBDB).

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

Where sources disagree

1 open

Age

  • 237–227.3 MaPBDB
  • 89.8–83.6 MaPBDB's own confirmed records

The ages of the records reach well beyond the published range. An editor hasn't ruled yet, so this is rated low until they do.

Did it meet…?

?

No. Craspedodon had gone at least 0 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.

None in Omnisaura yet.

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