- Length
- 8 m
- Weight
- 2 tonnes
- Diet
- Ate plants and animalsplants, possibly meat
- Walked
- On 2 legs
- When
- Late Cretaceousabout 96 million years ago
- Fossils found in
- Mongolia
- Named by
- Xu, Tan, Wang, Zhao and Tan (2007)
- Family tree
- Dinosauria › Saurischia › Theropoda › Caenagnathidae
Large theropods. Big two-legged meat-eaters, such as Tyrannosaurus. See all 63
Lived at the same time
- Achillobator · same country
- Erlikosaurus · same country
- Garudimimus · same country
- Graciliceratops · same country
- Segnosaurus · same country
- Talarurus · same country
- Tsagantegia · same country
- Aegyptosaurus
Other large theropods
- Rugops Late Cretaceous
- Segnosaurus Late Cretaceous
- Nothronychus Late Cretaceous
- Achillobator Late Cretaceous
- Carcharodontosaurus Late Cretaceous
- Deltadromeus Late Cretaceous
- Garudimimus Late Cretaceous
- Mapusaurus Late Cretaceous
Source: Gigantoraptor in the Natural History Museum Dino Directory, read 12 November 2026. Sizes are the museum's estimates for a typical adult. "Lived at the same time" lists dinosaurs whose dates overlap, which does not always mean they met.