Jurassic
Chilesaurus
Chilesaurus diegosuarezi
The catalogue presents Chilesaurus as a herbivore member of Chilesauridae that lived during the Jurassic, between 149.2–145.0 Ma. Its estimated range is 3.0–4.5 m in length and 70–120 kg in mass, giving a practical sense of scale. Reference material comes from Toqui Formation, Aysén, Chile. Size and mass are approximations and may change with new fossils or methods.
Evidence-backed summary
For Chilesaurus, the PBDB records the taxonomic attribution as Novas et al. (2015).
The PBDB places it in Ornithischia, and the catalogue record assigns it to the family Chilesauridae.
- PBDB · taxon.parent
- Chilesauridae
In the PBDB record, the reported stratigraphic range is the Tithonian.
The PBDB catalogues 1 occurrence, with material from the Toqui Formation (1). Provenance: Chile.
The catalogue records the holotype as SNGM-1935 and the type locality as “Toqui Formation, Aysén, Chile”.
- SNGM-1935
- Toqui Formation, Aysén, Chile
The catalogue's reference measurements are 3.0–4.5 m in length and 70–120 kg in mass — estimates, which vary with specimen and method.
- 3.0-4.5 m
- 70-120 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
- 3.0–4.5 m
- Weight
- 70–120 kg
- Period
- Jurassic
- Time range
- 149.2–145.0 Ma
Discovery Information
- First Discovery
- 2015
- Described by
- Novas et al.
Taxonomic Classification
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Reptilia
- Order
- Ornithischia
- Family
- Chilesauridae
- Genus
- Chilesaurus
- Species
- d. diegosuarezi
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
- SNGM-1935
- Type locality
- Toqui Formation, Aysén, Chile