Where have Gallimimus fossils been found?
Gallimimus is represented here by selected fossil records from mongolia, especially nemegt formation records in the current atlas. Fossil Atlas maps those records as modern discovery locations.
Fossil Atlas: Specimen ProfileOrnithomimid dinosaurCatalog FA·GALL·1963
Plate 31 · Omnivore
GallimimusFossil map and specimen profile
“The Fastest Dinosaur of the Nemegt”
Binomial Gallimimus bullatus · GAL-ih-MY-mus
Late Cretaceous - 70-66 Ma
Illustration- Classification
- Ornithomimid dinosaur
- Family
- Ornithomimidae
- Genus / Species
- Gallimimus bullatus
- Diet
- Omnivore
- Range
- Mongolia, especially Nemegt Formation records in the current atlas.
Quick provenance answer
Where have Gallimimus fossils been found?
Gallimimus fossil records in Fossil Atlas are mapped as selected modern discovery locations, with 15 source-backed records currently shown. Mongolia, especially Nemegt Formation records in the current atlas. Key mapped formations in the current dataset include Baruungoyot, Nemegt, Bissekty. These pins are fossil record locations, not a complete ancient habitat map.
- Mapped records
- 15
- Modern range note
- Mongolia, especially Nemegt Formation records in the current atlas.
- Key formations
- Baruungoyot, Nemegt, Bissekty
- Map caveat
- Modern fossil locations, not ancient habitat.
Field account
Gallimimus was a large ornithomimid dinosaur from the Late Cretaceous Nemegt Formation of Mongolia. Fossil Atlas maps selected discovery records and links it to the broader Gobi fossil story.
Built to scale
Size against a person
Drawn true to scale on a metre ruler.
0 m2468101214161820222426
Gallimimus, 6 m (20 ft)Adult human, 1.8 m≈ 3× longer than a person is tall
Field measurements
Measurements & capabilities
MeasuredEstimate
Length
measured6 m · 20 ft
Largest known specimens
Height
measured2 m (6.5 ft)
Body mass
estimate440 kg · 970 lb
Typical adult
Top speed
estimate56 km/h · 35 mph
Modelled, debated
How Gallimimus lived
Gallimimus was one of the largest ornithomimids, a group of long-legged, toothless theropods convergently similar in some respects to ostriches. It was probably one of the fastest dinosaurs, with long hindlimbs relative to body size. Its feeding is less clear: the toothless beak and the shape of its hands suggest it was an opportunistic omnivore, possibly including small animals, eggs, invertebrates, and plant material in its diet.
Speed
Long femur, tibia, and metatarsals proportioned for running. Speed estimates vary, but the overall build is consistent with fast sustained movement at the high end of estimates for any dinosaur.
The beak
Completely toothless, with a wide, flat beak. In some related ornithomimids, comb-like structures suggest filter feeding in water, though this is not confirmed for Gallimimus.
Hands
Long, three-fingered hands with relatively straight claws, adapted for raking or grasping rather than cutting.
Social behavior
Multiple individuals are known from the Nemegt Formation. The ornithomimid lifestyle has been compared with modern ratites, which often live in loose social groups.
Known from
Fossil evidence
01Skulls
02Limb bones
03Partial skeletons
04Ornithomimid fossils
Key formations
BaruungoyotNemegtBissekty
Geologic timeline
When they lived
Position of this animal’s known range across 252 million years of the Mesozoic and beyond.
252 MaToday
70-66 million years ago
Field notes
01
Gallimimus is one of the most recognizable ostrich-like dinosaurs.
02
Its Nemegt records give Mongolia pages a non-predator, non-armored dinosaur anchor.
03
Its name means chicken mimic.
How we know Gallimimus
Polish-Mongolian expeditions recovered Gallimimus specimens from the Nemegt Basin starting in 1963. Rinchen Barsbold named the genus in 1972 from material including a nearly complete skeleton. It became internationally recognisable after appearing in the 1993 Jurassic Park film in a stampeding herd sequence. The real animal was from Mongolia, not a fictional Pacific island, and it lived roughly 70 million years before the events depicted.
Shared the landscape
Lived alongside
Animals known from the same deposits and time as Gallimimus.
Tarbosaurus
The apex predator of the Nemegt Formation and the main predatory threat to Gallimimus.
Therizinosaurus
A slow-moving, long-clawed herbivore sharing the same formation.
- Not yet mapped
Saurolophus
A large crested hadrosaur from the Nemegt, sharing the same river-system habitats.
Same family
Close relatives
Other members of Ornithomimidae.
- Not yet mapped
Struthiomimus
A North American ornithomimid of similar build, from the Late Cretaceous of Canada.
- Not yet mapped
Ornithomimus
Another Canadian ornithomimid, slightly smaller and from the same time period as Struthiomimus.
- Not yet mapped
Deinocheirus
A giant ornithomimosaur from the Nemegt Formation with enormous arms and a very different body plan from typical ornithomimids, showing the range within the group.
Gallimimus fossil discovery map
Pins show selected fossil records for Gallimimus; use them as modern discovery evidence, not a complete range map. Modern fossil discovery map: pins show where selected fossil and specimen records were found today, not ancient Earth positions. What does this mean?
Modern Fossil Discovery Map
Specimen evidence
Museum media and models
No open specimen media or embeddable model assets are available in the local enrichment data yet.
Research notes
Gallimimus fossil map FAQ
Is this map where Gallimimus lived?
No. The map shows modern fossil discovery locations from selected records. Ancient habitat and paleogeographic reconstructions are separate questions.
What formation is Gallimimus associated with here?
The current Fossil Atlas records include Baruungoyot. Formation coverage depends on the selected dataset and may not be complete.
Can I make a Gallimimus expedition card?
Yes. Use the expedition card generator to turn the Gallimimus map and specimen profile into a shareable card.
Caveats
Important notes
Selected fossil records from PBDB and museum biodiversity aggregators. This is not a complete fossil count by country; source labels and confidence notes help distinguish canonical paleobiology records from specimen-media records.
Reconstruction images are labeled illustrations and do not represent fossil evidence. Size, speed, and bite-force figures are typical published estimates and remain subject to revision as new specimens are described.
Trust note
Selected source-backed records
Maps use curated PBDB, museum, and specimen-source records with visible caveats.
Trust note
Modern discovery locations
Pins show where fossils were found or reported today, not exact ancient habitat positions.
Trust note
Reconstruction is not evidence
Artwork is labeled separately from specimen photos, maps, and source records.
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