Cretaceous
Gallimimus
Gallimimus bullatus
The catalogue presents Gallimimus as a omnivore member of Ornithomimidae that lived during the Cretaceous, between 93.9–72.2 Ma. Its estimated range is 4.0–6.0 m in length and 200–440 kg 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 Gallimimus, the PBDB records the taxonomic attribution as Osmólska et al. (1972).
The PBDB places it in Ornithomimidae, and the catalogue record assigns it to the family Ornithomimidae.
- PBDB · taxon.parent
- Ornithomimidae
In the PBDB record, the reported stratigraphic range runs from the Turonian to the Maastrichtian.
The PBDB catalogues 14 occurrences, with material from the Nemegt Formation (14). Provenance: Mongolia.
The catalogue records the holotype as IGM 100/11 and the type locality as “Nemegt Formation, Mongolia”.
- IGM 100/11
- Nemegt Formation, Mongolia
The catalogue's reference measurements are 4.0–6.0 m in length and 200–440 kg in mass — estimates, which vary with specimen and method.
- 4.0-6.0 m
- 200-440 kg
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
- 4.0–6.0 m
- Weight
- 200–440 kg
- Period
- Cretaceous
- Time range
- 93.9–72.2 Ma
Discovery Information
- First Discovery
- 1972
- Described by
- Halszka Osmólska
Taxonomic Classification
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Reptilia
- Order
- Saurischia
- Family
- Ornithomimidae
- Genus
- Gallimimus
- Species
- G. bullatus
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 100/11
- Type locality
- Nemegt Formation, Mongolia