Genus: Tanius WIMAN, 1929
Etymology: In honor of Tan (Tan Zi-zhou), Chinese geologist who collected the original fossil sin 1923, “

Species: sinensis WIMAN, 1929
Etymology: Latin, sinensis, "China."


Locality: Southwest of Chiangchingting Village, Jingangkou, Lai Yang Hsien, Shandong (Shantung) Province, China.

Horizon: Wangshi Formation, Wang Shih Series.


Age: ?Campanian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous.

Material: Fragmentary skull and fragmentary skeleton.

Note: CHENG, HU & FANG, 1995 refer Bactrosaurus johnsoni to this species.


Species: chingkankouensis YOUNG, 1958 (nomen dubium)
Etymology: In reference to Chingkankou, Laiyang, Shandong (Shantung) Province, China, where the specimen was discovered.

Holotype: IVPP V 724

Locality: Jingangkou, Hsikou, Chingkankou, Laiyang, Shandong (Shantung) Province, China.

Horizon: Upper part of the Wangshih Series.


Age: Campanian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous.

Material: 3rd to 12th cervicals,

Referred material:

2 broken cervicals, 8 caudals, right scapula, distal end of pubes, right ischium.

K141, K131: 2 dorsal vertebrae.

V726: Right ilium, sacrum.

V724: Right ilium, sacrum.