Chuanjie Formation
The Chuanjie Formation (simplified Chinese: 川街组; traditional Chinese: 川街組; pinyin: Chuānjiē Zǔ), is a geological formation in Yunnan, China. It dates back to the Middle Jurassic.[1] It was formerly referred to as being the lower member of the "Upper Lufeng" as opposed to the underlying "Lower Lufeng" now referred to as the Lufeng Formation. Tracks of theropods and sauropods,[2] as well as thyreophorans[3] are known from the formation.
| Chuanjie Formation Stratigraphic range: Bajocian ~170–168 Ma | |
|---|---|
| Type | Geological formation |
| Underlies | Laoluocun Formation |
| Overlies | Lufeng Formation |
| Thickness | 221 m (725 ft) |
| Lithology | |
| Primary | Mudstone, siltstone |
| Other | Conglomerate |
| Location | |
| Coordinates | 25.0°N 102.1°E |
| Approximate paleocoordinates | 25.1°N 108.6°E |
| Region | Yunnan |
| Country |  |
| Extent | Yunnan Basin |
  Chuanjie Formation (China)  Chuanjie Formation (Yunnan) | |
Fossil content
| Vertebrates[4] | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
| Analong | A. chuanjieensis | Quarry 1, Lao Chang Qing | A mamenchisaurid sauropod[5] | |||
| Chuanjiesaurus[1] | C. anaensis.[1] | Quarry 1, Lao Chang Qing | "Partial postcranial skeleton"[6] | |||
| Shidaisaurus | S. jinae | Quarry 1, Lao Chang Qing | "Partial postcranial skeleton" | |||
| Xinjiangchelys | X. oshanensis[7] | Quarry 1, Lao Chang Qing | Xinjiangchelyid turtle | |||
See alson
- List of dinosaur-bearing rock formations
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References
- Weishampel, David B; et al. (2004). "Dinosaur distribution (Middle Jurassic, Asia)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 541–542. ISBN 0-520-24209-2.
- Xing et al., 2014
- Xing et al., 2019
- "Quarry 1, Lao Chang Qing (Jurassic of China)". Fossilworks.
- Ren et al., 2020
- "Table 13.1," in Weishampel, et al. (2004). Page 261.
- Tong et al., 2015
Bibliography
- Ren, X.-X.; T. Sekiya; T. Wang; Z.-W. Yang, and H.-L. You. 2020. A revision of the referred specimen of Chuanjiesaurus anaensis Fang et al., 2000: a new early branching mamenchisaurid sauropod from the Middle Jurassic of China. Historical Biology .. ..
- Xing, Lida; Martin G. Lockley; Hendrik Klein; Gerard D. Gierliński; Yong Ye; Jianping Zhang; W. Scott Persons, and Tao Wang. 2019. First Thyreophoran Type Tracks from the Middle Jurassic Chuanjie Formation of Yunnan Province, China. Ichnos 26. 8–15. doi:10.1080/10420940.2017.1366904 ISSN 1042-0940
- Tong, Haiyan; Dong, Zhiming; Wang, Tao (2015). "A revision of Xinjiangchelys oshanensis (), and new material from the Middle Jurassic of Lufeng, Yunnan Province, China". Bulletin de la Société Géologique de France. 186 (1): 43–49. doi:10.2113/gssgfbull.186.1.43 ISSN 0037-9409
- Xing, Li-Da; Martin G. Lockley; Tetsuto Miyashita; Hendrik Klein; Tao Wang; W. Scott Persons; Shi-Gang Pan; Jian-Ping Zhang, and Zhi-Ming Dong. 2014. Large sauropod and theropod tracks from the Middle Jurassic Chuanjie Formation of Lufeng County, Yunnan Province and palaeobiogeography of the Middle Jurassic sauropod tracks from southwestern China. Palaeoworld 23. 294–303. doi:10.1016/j.palwor.2014.04.003
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