Genus
Valid Extinct

Tongnanlong

Wei et al. 2025

Tongnanlong is a genus of mamenchisaurid dinosaur from the Late Jurassic Suining Formation of Chongqing, China. The type species is Tongnanlong zhimingi.

Temporal range
Triassic
Jurassic
Cretaceous
Paleogene
Neogene
252 201 145 66 0 Ma
PBDB occurrences
1
Group
Dinosaures
Herbivore Ground dwelling, gregarious Terrestrial
Classification
Dinosauria Unranked clade
Saurischia Unranked clade
Sauropodomorpha Unranked clade
Massopoda Unranked clade
Sauropodiformes Unranked clade
Sauropoda Unranked clade
Gravisauria Unranked clade
Eusauropoda Unranked clade
Mamenchisauridae Unranked clade
Tongnanlong Genus
Fossil sites 1 geolocated sites
Distribution
Top countries
🇨🇳 China
1
Geological formations
Suining
1
Temporal distribution
Kimmeridgian (154.8–149.2 Ma)
1
Species (1)
Tongnanlong zhimingi 162 Ma
Bibliography
Original description
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) DOI ↗
Bibliography (1)
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) DOI ↗