Chiayusaurus
genus of reptiles (fossil)
Chiayusaurus (meaning "Chia-yu-kuan lizard", after where it was found) is a genus of sauropod dinosaur known from teeth found in China and possibly also South Korea. Two species have been named for this obscure genus, though only the type, C. lacustris, is still seen as valid. It was originally named as Chiayüsaurus, but the ICZN does not permit special characters, so the name was corrected to Chiayusaurus. The obsolete name can still be seen in older sources, though.
As a sauropod, Chiayusaurus would have been a large, quadrupedal herbivore.
History and taxonomy
Birger Bohlin based Chiayusaurus on a tooth crown in the IVPP. This tooth was found in the Barremian (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. As it was based on such sparse material, it has largely been ignored or considered to be indistinguishable from other, better-known sauropods. For example, Russell and Zheng found its tooth to be indistinguishable from those of Mamenchisaurus.
Bohlin described a larger tooth in the 1953 publication as "Species A. (aff.
The public source identifies “Chiayusaurus” as genus of reptiles (fossil). This brief keeps that definition visible, then builds a research path around Chiayusaurus, genus and reptiles.
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Stable identifiers, scientific names and standards terminology offer the best bridge between this overview and specialist evidence. The source revision retrieved here is dated Dec 5, 2025. The linked authority identifier is Q719905. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1953.
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This entry incorporates text from “Chiayusaurus” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.