| Qiketai Formation | |
|---|---|
| Stratigraphic range: Callovian, | |
| Type | Geological formation |
| Underlies | Unnamed formation equivalent to the Qigu Formation |
| Overlies | Sanjianfang Formation |
| Lithology | |
| Primary | Sandstone |
| Other | Tuffite |
| Location | |
| Region | Xinjiang |
| Country |  China |
| Extent | Turpan-Hami Basin |
| Type section | |
| Named for | Qiketai |
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]
- ^ 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.
- ^ 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.