Qiketai Formation

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Qiketai Formation
Stratigraphic range: Callovian,164.6  Ma
O
S
D
C
P
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Pg
N
Type Geological formation
UnderliesUnnamed formation equivalent to the Qigu Formation
Overlies Sanjianfang Formation
Lithology
Primary Sandstone
Other Tuffite
Location
Region Xinjiang
Country China
ExtentTurpan-Hami Basin
Type section
Named forQiketai

The Qiketai Formation is a geological formation in Xinjiang, China. It is found within the Turpan-Hami Basin. It is roughly equivalent in age to the nearby Toutunhe Formation and Wucaiwan Formation of the Southern and Northern Junggar Basin, respectively. Tuffites within the unit have been dated to the Callovian stage of the Jurassic approximately 164.6 ± 1.4 ma. [1] The dinosaur Xinjiangtitan is known from the formation. [2]

References

  1. Wu, Wen-hao; Zhou, Chang-Fu; Wings, Oliver; Toru, Sekiya; Dong, Zhi-ming (2013). "A new gigantic sauropod dinosaur from the Middle Jurassic of Shanshan, Xinjiang" (PDF). Global Geology (in Chinese). 32 (3): 437–446. doi:10.3969/j.issn.1004-5589.2013.03.002. Archived from the original (PDF) on 2013-11-10. Retrieved 2019-10-21.
  2. Maisch, Michael W.; Matzke, Andreas T. (2019-01-01). "First record of a eusauropod (Dinosauria: Sauropoda) from the Upper Jurassic Qigu-Formation (southern Junggar Basin, China), and a reconsideration of Late Jurassic sauropod diversity in Xinjiang". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 291 (1): 109–117. doi:10.1127/njgpa/2019/0792. ISSN   0077-7749.