Tongnanlong
Field photograph to come
Tongnanlong
DV-1290 · type species Tongnanlong zhimingi
- Lived
- 162 to 143 million years ago, Late Jurassic to Early Cretaceous
- Diet
- Herbivore
- Group
- Sauropods, Mamenchisauridae
- Found in
- China
- Named by
- Wei et al. 2025
Field notes
About Tongnanlong
Tongnanlong was a plant-eating sauropod that lived in the Late Jurassic to Early Cretaceous, 162 to 143 million years ago. It belongs to the family Mamenchisauridae.
The Paleobiology Database lists 1 find of Tongnanlong, from China. Its fossils come from the Suining Formation. It was named by Wei et al. in 2025.
The evidence
Where its fossils were found
Today
150 million years ago
Lived alongside
Found in the same rock formations.
Close relatives
Other members of Mamenchisauridae.
Sources: Paleobiology Database, WikidataNamed in: X. Wei, Y. Tan, and S. Jiang, J. Ding, L. Li, X. Wang, Y. Liu, G. Wei, D. Li, Y. Liu, G. Peng, S. Zhang, C. Lao. 2025. A new mamenchisaurid from the Upper Jurassic Suining Formation of the Sichuan Basin in China and its implication on sauropod gigantism. Scientific Reports 15(1)