Outline: a typical sauropod
Uragasaurus
"serpent lizard"
Type species Uragasaurus kalasinensis
- Lived
- 149 to 137 million years ago, Late Jurassic to Early Cretaceous
- Diet
- Herbivore
- Group
- Sauropods, Mamenchisauridae
- Found in
- Thailand
- Named by
- Nilpanapan et al. 2026
Where its fossils were found
The evidence
Today
145 million years ago
Field notes
About Uragasaurus
What it was like
Uragasaurus was a mamenchisaurid, a long-necked plant eater from the family of Mamenchisaurus. It is known from a single back bone.
Its world
It lived in the Late Jurassic or Early Cretaceous in what is now Thailand. Its bone comes from the Phu Kradung Formation, where the small plant eater Minimocursor also lived.
How it was found
Nilpanapan and colleagues named it in 2026. The type species is Uragasaurus kalasinensis. It is the first mamenchisaurid named from Thailand.
Lived alongside
Found in the same rock formations
Close relatives
Other members of Mamenchisauridae
Sources: WikidataNamed in: A. Nilpanapan, S. Manitkoon, and V. Suteethorn, K. Lauprasert. 2026. A new mamenchisaurid sauropod from the Lower Phu Kradung Formation, Upper Jurassic of northeastern Thailand. Scientific Reports 16(1):21205:1-16

