Cretaceous
Pinacosaurus
Pinacosaurus grangeri
The catalogue presents Pinacosaurus as a herbivore member of Ankylosauridae that lived during the Cretaceous, between 80.0–75.0 Ma. Its estimated range is 4.5–5.0 m in length and 1.0–2.0 t in mass, giving a practical sense of scale. Reference material comes from Djadochta Formation, Mongolia. Size and mass are approximations and may change with new fossils or methods.
Evidence-backed summary
For Pinacosaurus, the PBDB records the taxonomic attribution as Gilmore (1933).
The PBDB places it in Ankylosaurinae, and the catalogue record assigns it to the family Ankylosauridae.
- PBDB · taxon.parent
- Ankylosauridae
In the PBDB record, the reported stratigraphic range runs from the Coniacian to the Campanian.
The PBDB catalogues 16 occurrences, with material from the Djadokhta Formation (6), from the Bayan Mandahu Formation (5) and from the Baruungoyot Formation (2). Provenance: Mongolia and China.
The catalogue records the holotype as AMNH 6523 and the type locality as “Djadochta Formation, Mongolia”.
- AMNH 6523
- Djadochta Formation, Mongolia
The catalogue's reference measurements are 4.5–5.0 m in length and 1.0–2.0 t in mass — estimates, which vary with specimen and method.
- 4.5-5.0 m
- 1.0-2.0 tons
The record gathers 55 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
- 4.5–5.0 m
- Weight
- 1.0–2.0 t
- Period
- Cretaceous
- Time range
- 80.0–75.0 Ma
Discovery Information
- First Discovery
- 1933
- Described by
- Charles Gilmore
Taxonomic Classification
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Reptilia
- Order
- Ornithischia
- Family
- Ankylosauridae
- Genus
- Pinacosaurus
- Species
- P. grangeri
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
- AMNH 6523
- Type locality
- Djadochta Formation, Mongolia