Cretaceous
Deinocheirus
Deinocheirus mirificus
The catalogue presents Deinocheirus as a omnivore member of Deinocheiridae that lived during the Cretaceous, between 100.5–72.2 Ma. Its estimated range is 11.0–12.0 m in length and 6.4–7.0 t in mass, giving a practical sense of scale. Reference material comes from Nemegt Formation, Mongolia. Size and mass are approximations and may change with new fossils or methods.
Evidence-backed summary
For Deinocheirus, the PBDB records the taxonomic attribution as Kielan-Jaworowska (1969).
The PBDB places it in Deinocheiridae, and the catalogue record assigns it to the family Deinocheiridae.
- PBDB · taxon.parent
- Deinocheiridae
In the PBDB record, the reported stratigraphic range runs from the Cenomanian to the Maastrichtian.
The PBDB catalogues 4 occurrences, with material from the Nemegt Formation (4). Provenance: Mongolia.
The catalogue records the holotype as IGM 100/127 and the type locality as “Nemegt Formation, Mongolia”.
- IGM 100/127
- Nemegt Formation, Mongolia
The catalogue's reference measurements are 11.0–12.0 m in length and 6.4–7.0 t in mass — estimates, which vary with specimen and method.
- 11.0-12.0 m
- 6.4-7.0 tons
The record gathers 27 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
- 11.0–12.0 m
- Weight
- 6.4–7.0 t
- Period
- Cretaceous
- Time range
- 100.5–72.2 Ma
Discovery Information
- First Discovery
- 1970
- Described by
- Halszka Osmólska
Taxonomic Classification
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Reptilia
- Order
- Saurischia
- Family
- Deinocheiridae
- Genus
- Deinocheirus
- Species
- D. mirificus
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
- IGM 100/127
- Type locality
- Nemegt Formation, Mongolia