Species: mongoliensis OSBORN, 1924
Etymology: In reference to Mongolia, where the specimen was discovered.
= Asiatosaurus mongolicus YOUNG, 1937 (sic)

Holotype: AMNH 6264

Locality: East end of Red Mesa, Ööshinn Nuur (Oshih Basin), Northern Gobi, Mongolia.

Horizon: Öösh (Oshih Sair, Andakhuduk) Formation.

Biostratigraphy: Psittacosaurus mongoliensis life zone.

Age: Aptian/Albian Stage, Middle Gallic Subepoch, Upper Early Cretaceous Epoch, Early Cretaceous.
Note: According to Shuvalov, 1975 Öndörukhaa Svita of Valanginian to Late Neocomian age.

Material: Tooth.

Paratype: AMNH 6294: A larger tooth.

Referred material:

AMNH 6532: Tooth.

Field number 378: Fragment of a tooth.

Several limb bones, weathered, broken and not collected.

 

Locality: 3 miles east of Red Mesa, Ööshinn Nuur (Oshih Basin), Northern Gobi, Mongolia.

Horizon: Öösh (Oshih Sair, Ashile) Formation.

Biostratigraphy:

Age: Aptian/Albian Stage, Middle Gallic Subepoch, Upper Early Cretaceous Epoch, Early Cretaceous.

Material:

AMNH 6533: 2 anterior dorsal vertebrae, badly weathered, several ribs, and one chevron, 3 ribs and chevron collected.

Number: Not given: Single dorsal vertebrae, badly weathered, not collected.

 

DONG, 1973

Locality: Urhe region, Junggar Basin, Wuerho, Xinjiang Uygur Zizhiqu (Sinkang) Province, China.

Horizon: Tulgo Series.

Biostratigraphy:

Age: Early Cretaceous.

Material:

IVPP V. 4021-1: Tooth.

IVPP V.4021-2: Dorsal vertebrae.

 

KSEPKA, GAO & NORELL, 2005

Locality: Two Volcanoes, 43°49.503'N, 99°19.546'E, Dhous, Bayanhongor, Mongolia.

Horizon:

Biostratigraphy:

Age: Aptian Stage, Middle Gallic Subepoch, Upper Early Cretaceous Epoch, Early Cretaceous.

Material:

Number: Not given: Teeth.

 

= Chiayusaurus lacustris BOHLIN, 1953
Etymology: Latin, lacustris, "lacustrine."
= Chiayusaurus lacustris BOHLIN, 1953 (nomen dubium)
= Chiayasaurus laciatain DONG, 1977 (sic)

Holotype:

Locality: Dacaotan, Jalyuguan (Chia-Yu-Kuan), West Kansu, Gansu (Kansu) Province, China.

Horizon: Xinminbao Group.

Biostratigraphy:

Age: Late Barremian-Albian Stage, Gallic Subepoch, Early Cretaceous Epoch, Early Cretaceous.
Note: According to Sun, Ailing, Li Jinling, Ye Xiangkui, Dong Zhiming and Hou Lianhai, 1992 Late Jurassic.

Material: Tooth.

Referred material:

DONG, 1977

Locality: Nanhu, southeast of Qiketai, Shanshan District, Turpan, Eastern Gansu (Kansu) Province, China.

Horizon: Huoyanshan Formation (Xinminpa Formation).

Biostratigraphy:

Age: Late Jurassic.

Material:

Number: Not given: Tooth.

 

= Chiayusaurus aff. sp BOHLIN, 1953

Locality: Hui-hui-p'u, China.

Horizon:

Biostratigraphy:

Age: Late Cretaceous.

Material:

Number: Not given: Fragmentary tooth.

 

= Mongolosaurus aff. sp BOHLIN, 1953

Locality: Hui-hui-p'u, China.

Horizon:

Biostratigraphy:

Age: Late Cretaceous.

Material:

Number: Not given: Fragmentary tooth.

_____________________________________________________________________________________
Species: kwangshiensis HOU, YEH & ZHAO, 1975 (nomen dubium)
Etymology: In reference to Kwangsi, Guangxi Province, Guangzi Zhuangzu Autonomous range, China, where the specimen was discovered.

Holotype: IVPP V 4794

Locality: Napan Basin, Fusui County, southwest of Nanning, Kwangsi, Guangxi Province, Guangzi Zhuangzu Autonomous range, China.

Horizon: Napan Formation.

Biostratigraphy:

Age: Early Cretaceous.

Material: Teeth, fragmentary cervical vertebrae, cervical and dorsal ribs.

_____________________________________________________________________________________

Species: asianensis (LEE, YANG & PARK, 1997)
Etymology: The species is named after Asia, where the type material was collected and Latin, ensis, "place."
= Chiayusaurus asianensis LEE, YANG & PARK, 1997

Holotype: KPE 8001

Locality: Yusuri near Jinju, Gyeongsang Province, South Korea.

Horizon: Hasandong Formation.

Biostratigraphy:

Age: Hauterivian Stage, Upper Neocomian Subepoch, Middle Early Cretaceous Epoch, Early Early Cretaceous.

Material: Tooth.