Omnisaura

Dinosaur genus

Rebbachisaurus

Lavocat 1954

Rebbachisaurus is a dinosaur genus known from bones, found in rocks 106.3–93.9 million years old, in Morocco.

Confidence labels
How sure are we?0 high9 medium1 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
106.3–93.9 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
Lavocat 1954
mediummedium: Only PBDB gives this; nothing contradicts it.
Sources

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

Described in
R. Lavocat (1954). Sur les dinosauriens du Continental Intercalaire des Kem-Kem de la Daoura [On the dinosaurs from the Continental Intercalaire of the Kem Kem of the Doura]. Congrés Géologique International, Comptes Rendus de la Dix-Neuvième Session, Section 13 15: 65–68.
mediummedium: Only PBDB gives this; its author and year match the naming authority (Lavocat 1954).
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
Albian to Cenomanian, 106.3–93.9 million years ago
mediummedium: Only PBDB gives this; nothing contradicts it.
Omnisaura calculation106.3–93.9 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
Morocco
mediummedium: Only PBDB records it (4 records).
Sources

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

Rock formations
Gara Sbaa
mediummedium: Only PBDB records it (2 records).
Sources

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

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

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

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

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

Species named in its records
Rebbachisaurus garasbae
Sources

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

Diet
herbivore (inferred for its group)
mediummedium: Only PBDB gives this, and it infers it for the whole of Sauropoda, 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)
lowlow: PBDB infers this way of life for the whole of Sauropoda; 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.
  • What it was named after: no source we use gives it yet.
  • Held back: 1 fossil record left out: identified only tentatively (for example "cf.", "?" or the name in quotation marks).
  • Resting on one source: 5 facts come from a single source with nothing against them (rated medium): authority (PBDB); parent group (PBDB); family (PBDB); age (headline) (PBDB); 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…?

?

No. Rebbachisaurus had gone at least 10.3 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 Rebbachisaurus by where and when their fossils were found, by classification and by who named them. Select a name to open its page.

RebbachisaurusSame rocks, same timeSame familySame naming authorAlso found in MoroccoDeltadromeusSpinosaurusAgustiniaAmazonsaurusAstigmasauraCampananeyenand 7 moreMajungasaurusCarcharodontosaurusand 2 more

Same rocks, same time 2

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

DeltadromeusSpinosaurus

Named by Lavocat 1

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

Majungasaurus

Found in Morocco 3

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

SpinosaurusCarcharodontosaurusDeltadromeus

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.