Chiayusaurus

This tooth was found in the Barremian-age (Early Cretaceous) Xinminbao Group of Gansu, China.

This spatulate tooth crown was 27 millimeters (1.1 inches) long, and was not similar to the younger genus Asiatosaurus.

[2] As it was based on such sparse material, it has largely been ignored or considered to be indistinguishable from other, better-known sauropods.

This new species, C. asianensis, is from the Aptian-Albian-age Lower Cretaceous Hasandong Formation of Namdo, Gyeongsang.

They regarded the type tooth of C. lacustris as nearly identical to teeth of Euhelopus but were unable to conclusively establish synonymy, finding it to be an indeterminate eusauropod.