Genus: Chuannanchelys TONG, DANILOV, YE, OUYANG & PENG, 2012
Etymology:

Species: dashanpuensis (FANG, 1987) TONG, DANILOV, YE, OUYANG & PENG, 2012
= Chengyuchelys dashanpuensis FANG, 1987
Etymology: In reference to the Dashanpu locality, Hechuan County, Sichuan Basin, Sichuan (Szechwan) Province, China.

Holotype: ZDM 3011 (Field number I-T 19)

Locality: Dashanpu (Dashanpu Dinosaur Quarry), lat. 29°5’N, long. 104°50’E, situated 11 km east of Zigong City, 250 km south of Chengdu, Hechuan County, Sichuan Basin, Sichuan (Szechwan) Province, China.

Horizon: Xaishaximiao (Shaximiao) Formation.

Biostratigraphy:

Age: Bathonian-Callovian Stage (DONG & TANG, 1984), Middle-Upper Dogger Epoch, Middle Jurassic.
Note: Bajocian (CHEN et al. 1982), Lower Middle Dogger Epoch, Middle Jurassic.

Material: A slightly damaged carapace connected with a complete plastron.