Omnisaura

Footprint type

Jurabrontes

Marty et al. 2018

Jurabrontes is a footprint type: the name is for the fossil footprints themselves. The animal that made them is not known for certain. Its footprints are found in rocks 154.8–110.1 million years old in Switzerland, Germany and Italy.

Confidence labels
How sure are we?0 high10 medium3 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
154.8–110.1 Ma
Triassic
Jurassic
Cretaceous
252 million years ago20114366

Solid: the ages of its dated fossils, 154.8–110.1 million years ago (Omnisaura's calculation). Pale: the published range, 161.5–100.5 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
Marty et al. 2018
mediummedium: Only PBDB gives this; nothing contradicts it.
Sources

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

Described in
D. Marty, M. Belvedere, N. L. Razzolini, M. G. Lockley, G. Paratte, M. Cattin, C. Lovis, C. A. Meyer (2018). The tracks of giant theropods (Jurabrontes curtedulensis ichnogen. & ichnosp. nov.) from the Late Jurassic of NW Switzerland: palaeoecological & palaeogeographical implications. Historical Biology 30: 928–956. Read it
mediummedium: Only PBDB gives this; its author and year match the naming authority (Marty et al. 2018).
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
Jurabrontes curtedulensis
mediummedium: Only PBDB gives this; nothing contradicts it.
Sources

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

Dated to
Oxfordian to Albian, 161.5–100.5 million years ago
mediummedium: Only PBDB gives this; nothing contradicts it.
Omnisaura calculation154.8–110.1 million years ago, from its dated fossil records
mediummedium: Omnisaura's calculation from 5 confirmed PBDB records.
Sources

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

Found in
Germany
mediummedium: Only PBDB records it (2 records).
Switzerland
mediummedium: Only PBDB records it (2 records).
Italy
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
Reuchenette
mediummedium: Only PBDB records it (2 records).
Calcare di Bari
lowlow: Only one PBDB record.
Süntel
lowlow: Only one PBDB record.
mixedmixed: Levels differ between entries; each has its own.
Sources

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

Footprint family
Eubrontidae
mediummedium: Only PBDB gives this; nothing contradicts it.
Sources

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

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

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

Species named in its records
Jurabrontes curtedulensis, Jurabrontes melphicticus
Sources

Given by: Paleobiology Database (the species its fossil records are identified as).

Known from
Footprints and traces
Sources

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

Made by
Not known for certain. Footprints rarely show which animal made them.
Sources: Paleobiology Database (CC BY 4.0)Confidence levels and gaps are Omnisaura's own assessment.

Gaps are answers

What isn't known yet

  • The animal that made them: not known for certain, as for most footprint types.
  • Order: 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.
  • Held back: 8 fossil records left out: identified only tentatively (for example "cf.", "?" or the name in quotation marks).
  • 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); age (headline) (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…?

?

No. Jurabrontes had gone at least 26.5 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.

Connections

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

JurabrontesFound in the same rocksSame familyMegalosauripusParabrontopodusGrallatorAsianopodusChapusMegalosauropusand 1 more

Found in the same rocks 3

Genera and other fossil types from the same rock units, from rocks of overlapping age, the most shared fossil sites first.

MegalosauripusParabrontopodusGrallator

Same family: Eubrontidae 4

Other genera in Eubrontidae with a full profile.

AsianopodusChapusMegalosauripusMegalosauropus

Found in Switzerland 2

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

MegalosauripusParabrontopodus

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