Duonychus
Field photograph to come
Duonychus
DV-1273
- Lived
- 101 to 84 million years ago, Late Cretaceous
- Diet
- Herbivore
- Group
- Theropods, Therizinosauridae
- Found in
- Mongolia
- Named by
- Kobayashi et al. 2025
Field notes
About Duonychus
Duonychus was a plant-eating theropod that lived in the Late Cretaceous, 101 to 84 million years ago. It belongs to the family Therizinosauridae.
The Paleobiology Database lists 1 find of Duonychus, from Mongolia. Its fossils come from the Baynshire Formation. It was named by Kobayashi et al. in 2025.
The evidence
Where its fossils were found
Today
90 million years ago
Lived alongside
Found in the same rock formations.
Close relatives
Other members of Therizinosauridae.
Sources: Paleobiology Database, WikidataNamed in: Y. Kobayashi, D. K. Zelenitsky, and A. R. Fiorillo, T. Chinzorig. 2025. Didactyl therizinosaur with a preserved keratinous claw from the Late Cretaceous of Mongolia. iScience