Drag to rotate the Deinocheirus, scroll or pinch to zoom, and click a body part - the head, a limb, or the tail - to read what fossils tell us about it. The panel beside the model carries the real figures.
Deinocheirus was a Late Cretaceous giant ornithomimosaur from Mongolia - turn on the human figure to see how a person compares to its roughly 11 m body and 2.4 m arms.
The colors and skin here are an artistic reconstruction; fossils preserve bone, not soft tissue or color. This model is not a fossil-accurate skeleton. The measurements in the panel follow published estimates, with ranges shown where sources disagree.
Deinocheirus 3D Viewer
This page renders a Deinocheirus as a 3D model you can spin in the browser - drag to rotate, scroll or pinch to zoom, toggle a 1.8 m person beside it for scale, and click the head, a limb, or the tail to read a fact about that part.
Deinocheirus lived in the Late Cretaceous of Mongolia (Nemegt Formation), about 72-66 million years ago. Osmolska and Roniewicz named Deinocheirus mirificus in 1970 from giant arms; Lee and colleagues described much more complete skeletons in 2014. It is the largest known ornithomimosaur, with a sail-backed torso and arms about 2.4 m long.
| Measure | Figure |
|---|---|
| Length | about 11 m panel baseline (Lee et al. 2014); Paul 2016 about 11.5 m; Molina-Perez and Larramendi 2016 about 12 m |
| Hip height | about 3.5 m (panel reconstruction baseline); Senter and Robins 2010 about 3.3-3.6 m; Molina-Perez and Larramendi 2016 about 4.4 m |
| Weight | about 6,358 kg panel baseline (Lee et al. 2014); Paul 2016 about 5 t; Molina-Perez and Larramendi 2016 about 7 t; Campione and Evans 2020 about 6.5 t |
| When it lived | about 72-66 million years ago (Late Cretaceous, Nemegt Formation, Mongolia) |
| Diet | Omnivore (fish and plants reported in gut contents) |
Everything runs on your device with WebGL - no account, nothing sent to a server. Soft-tissue color is an artistic reconstruction; this model is not a fossil-accurate skeleton. Compare with the smaller Mongolian ornithomimid Gallimimus 3D Viewer and the Chinese giant oviraptorosaur Gigantoraptor 3D Viewer.
Frequently Asked Questions
How big was Deinocheirus?
Lee and colleagues (2014) estimated about 11 m and about 6,358 kg for the largest known specimen. Paul (2016) listed about 11.5 m and 5 t. Molina-Perez and Larramendi (2016) gave about 12 m, about 7 t, and a hip height near 4.4 m. Campione and Evans (2020) estimated about 6.5 t. This page uses 11 m and 6,358 kg as facts-panel baselines and notes the range. Turn on the human figure to compare with a 1.8 m person.
What kind of dinosaur was Deinocheirus?
It is the largest known ornithomimosaur (ostrich dinosaur) - a beaked theropod with enormous arms about 2.4 m long, a deep sail-backed torso, and a broad spatulate snout. Gut contents show fish and plant material, so it is treated as an omnivore.
When and where did Deinocheirus live?
In Late Cretaceous rocks of the Nemegt Formation in Mongolia, about 72-66 million years ago. Osmolska and Roniewicz named Deinocheirus mirificus in 1970 from giant arms; Lee and colleagues described much more complete skeletons in 2014.
Is the model scientifically accurate?
The proportions follow published figures, but the skin color and soft-tissue outline are an artistic reconstruction - fossils preserve bone, not soft tissue or color. This model is not a fossil-accurate skeleton. The length, weight, and age figures shown are real published values, with ranges cited where sources disagree.
Do I need to install anything to view it?
No. The model renders in your browser with WebGL - no app, no account, and nothing about your visit is sent to a server. The 3D engine loads once and is then cached. When available, a free-licensed glTF model may swap in after first paint.