Cretaceous
Abelisaurus
Abelisaurus comahuensis
The catalogue presents Abelisaurus as a carnivore member of Abelisauridae that lived during the Cretaceous, between 85.0–70.0 Ma. Its estimated range is 7.0–9.0 m in length and 1.5–2.0 t in mass, giving a practical sense of scale. Reference material comes from Anacleto Formation, Río Negro, Argentina. Size and mass are approximations and may change with new fossils or methods.
Evidence-backed summary
For Abelisaurus, the PBDB records the taxonomic attribution as Bonaparte (1984).
The PBDB places it in Abelisaurinae, and the catalogue record assigns it to the family Abelisauridae.
- PBDB · taxon.parent
- Abelisauridae
In the PBDB record, the reported stratigraphic range is the Maastrichtian.
The PBDB catalogues 1 occurrence, with material from the Allen Formation (1). Provenance: Argentina.
The catalogue records the holotype as MACN-RN 1245 and the type locality as “Anacleto Formation, Río Negro, Argentina”.
- MACN-RN 1245
- Anacleto Formation, Río Negro, Argentina
The catalogue's reference measurements are 7.0–9.0 m in length and 1.5–2.0 t in mass — estimates, which vary with specimen and method.
- 7.0-9.0 m
- 1.5-2.0 tons
The record gathers 52 bibliographic references registered in the PBDB, listed below.
Where it lived
Fossil occurrences on today’s map and in the tectonic reconstruction.
Positions reconstructed by PBDB/GPlates, not observed; this is not an exact habitat map.
Artistic 3D reconstruction
There is no approved species-specific 3D model yet. Generic anatomy will not be presented as if it were evidence.
Physical Specifications
- Length
- 7.0–9.0 m
- Weight
- 1.5–2.0 t
- Period
- Cretaceous
- Time range
- 85.0–70.0 Ma
Discovery Information
- First Discovery
- 1985
- Described by
- José Bonaparte & Fernando Novas
Taxonomic Classification
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Reptilia
- Order
- Saurischia
- Family
- Abelisauridae
- Genus
- Abelisaurus
- Species
- A. comahuensis
Data status
Taxonomic name matched to PBDB and checked on 2026-08-08.
Taxonomic linkage does not automatically validate size, mass, behaviour or appearance.
- Type specimen
- MACN-RN 1245
- Type locality
- Anacleto Formation, Río Negro, Argentina