Genus: Gongshuilong YAO, QIU, YU, YANG, WANG, CAO, ZHAO, XU, SHI, LOU, ZENG, LU, WU, XU, HAN & XING, 2026
Etymology: 'Gongshu', pinyin of the Mandrain Chinese term meaing the Gong River, which is quite close to the fossil locality and Mandarian Chinese, long, "Dragon".

Species: fanwei YAO, QIU, YU, YANG, WANG, CAO, ZHAO, XU, SHI, LOU, ZENG, LU, WU, XU, HAN & XING, 2026
Etymology: Mandarin Chinese,fanwei, this denotes teh sail-like tail largely attributed to the extremely elongate, cured neural spine alonf teh posterior caudal vertebrae.

Holotype: BS-JX F001-1

Locality: A quarry during the construction of the East China International Trace and Industral Zone, Zhpohutongkeng locality, Shahe Town, Zhanggong District, Gonzhou City, Jiangxi Province, and ~ 2km south-east of the railway station, China.

Horizon: Lianhe Formation.

Biostratigraphy:

Age: Middle Maastratichian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous.

Material:A nearly complete right dentary.

Paratype:

BGS-JX F001-2: A partial facial skeleton containing the left jugal and quadrate.

Referred material:

BGS-JX F001-3: A left maxilla exposing only its anterior end.

BGS-JX F001-4: A partial left nasal.

BGS-JX F001-5: A left postorbital missing teh anterior ramus.

BGS-JX F001-6: A nearly come;lte left surangular.

BGS-JX F001-7: A partial right surangular.

BGS-JX F001-8, 0, 10, 11: 4 cervical vertebrae.

BGS-JX F001-12: Posterior dorsal vertebra missing the neural spine.

BGS-JX F001-13: 10 articulated posterior caudal vertebrae.

BGS-JX F001-14: A partial left tibia.

BGS-JX F001-15: A left femur missing the proximal end.

BGS-JX F001-16: A left scapula missing part of the distal lade.

BGS-JX F001-17: A left scapual only preserving its proximal region.

BGS-JX F001-18: A partial left coracoid.

BGS-JX F001-19: A nealry complete left humerus.

BGS-JX F001-10: A rgith humeurs exposing the proximal half.