Cretaceous
Jakapil
Jakapil kaniukura
The catalogue presents Jakapil as a herbivore member of Jakapilidae that lived during the Cretaceous, between 97.0–94.0 Ma. Its estimated range is 1.5 m in length and 4–7 kg in mass, giving a practical sense of scale. Reference material comes from Candeleros Formation, Río Negro, Argentina. Size and mass are approximations and may change with new fossils or methods.
Evidence-backed summary
For Jakapil, the PBDB records the taxonomic attribution as Riguetti et al. (2022).
The PBDB places it in Thyreophoroidea, and the catalogue record assigns it to the family Jakapilidae.
- PBDB · taxon.parent
- Jakapilidae
In the PBDB record, the reported stratigraphic range is the Cenomanian.
The PBDB catalogues 1 occurrence, with material from the Candeleros Formation (1). Provenance: Argentina.
The catalogue records the holotype as MPCN PV 821 and the type locality as “Candeleros Formation, Río Negro, Argentina”.
- MPCN PV 821
- Candeleros Formation, Río Negro, Argentina
The catalogue's reference measurements are 1.5 m in length and 4–7 kg in mass — estimates, which vary with specimen and method.
- 1.5 m
- 4-7 kg
The record gathers 2 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
- 1.5 m
- Weight
- 4–7 kg
- Period
- Cretaceous
- Time range
- 97.0–94.0 Ma
Discovery Information
- First Discovery
- 2022
- Described by
- Riguetti et al.
Taxonomic Classification
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Reptilia
- Order
- Ornithischia
- Family
- Jakapilidae
- Genus
- Jakapil
- Species
- J. kaniukura
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
- MPCN PV 821
- Type locality
- Candeleros Formation, Río Negro, Argentina