|Named By:||K. Li, C.inY. Yang, J. Liu & Z.inX. Wang in 2010|
|Time Period:||Early Jurassic|
|Location:||China, Sichuan - Yimen Formation|
|Fossil(s):||Partial limbs and twenty vertebrae|
|Classification:||| Chordata | Reptilia | Dinosauria | Saurischia | Sauropoda | Mamenchisauridae ||
Tonganosaurus (named for the town of Tong'an from where it was found) is a genus of mamenchisaurid sauropod dinosaur, similar to Omeisaurus. It is known from one specimen consisting of twenty vertebrae, a front limb and pectoral girdle, and a complete hind limb with partial hip. It lived during the early Jurassic period (Hettangian - Toarcian, Yimen Formation) in what is now China. It was first named by Li Kui, Yang Chun-Yan, Liu Jian and Wang Zheng-Xin in 2010 and the type species is Tonganosaurus hei.