Chiayusaurus

Bohlin, 1953 JYAH-yoo-SOR-us Nomen dubium

From Chia-yü-kuan (Jiayuguan, in western Gansu/Kansu Province) and Greek sauros (lizard); meaning "Jiayuguan lizard". Originally erected as "Chiayüsaurus" and subsequently rendered Chiayusaurus to comply with ICZN orthography.

125.8–113.2 million years ago Barremian–Aptian, Early Cretaceous
Early Cretaceous stages

Chiayusaurus 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.

Species

Chiayusaurus lacustris Bohlin, 1953 Nomen dubium

Type species

Latin lacustris ("of the lake"), reflecting the freshwater lacustrine setting Bohlin inferred for the type horizon.

Holotype
Not catalogued , Institute of Vertebrate Paleontology and Paleoanthropology (uncatalogued)
Material
Isolated sauropod tooth crown; one of two distinct sauropod tooth morphologies Bohlin recognized in the Kansu material.
Horizon
Xinminpu Group, Barremian–Aptian, Early Cretaceous , 125.8–113.2 million years ago
Locality
Chia-yü-kuan badlands, Gansu, China

References

  1. Dong, Z. (2002). A new armored dinosaur (Ankylosauria) from Beipiao Basin, Liaoning Province, northeastern China. Vertebrata PalAsiatica 40(4): 276-285.

    Places the Lower Cretaceous beds north of Jiayuguan in the Xinminpu Group.

    dong2002a
  2. Bohlin, B. (1953). VI. Vertebrate Palaeontology 6. Fossil reptiles from Mongolia and Kansu. Reports from the Scientific Expedition to the North-western Provinces of China under Leadership of Dr. Sven Hedin. The Sino-Swedish Expedition Publication 37: 1-113.

    Erects Chiayusaurus lacustris on an isolated tooth from the Chia-yü-kuan section, Kansu (Gansu); original genus spelling later corrected to Chiayusaurus under ICZN.

    bohlin1953a