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: Aalenian-Bajocian ~ | |
| Type | Geological formation |
| Underlies | Laoluocun Formation |
| Overlies | Lufeng Formation |
| Thickness | 221 m (725 ft) |
| Lithology | |
| Primary | Mudstone, siltstone |
| Other | Conglomerate |
| Location | |
| Coordinates | 25°00′N 102°06′E / 25.0°N 102.1°E |
| Approximate paleocoordinates | 25°06′N 108°36′E / 25.1°N 108.6°E |
| Region | Yunnan |
| Country |  China |
| Extent | Yunnan Basin |
  Chuanjie Formation (China)  Chuanjie Formation (Yunnan) | |
Fossil content
edit| 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 also
editReferences
edit- ^ a b c 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. Retrieved 17 December 2021.
- ^ Ren et al., 2020
- ^ "Table 13.1," in Weishampel, et al. (2004). Page 261.
- ^ Tong et al., 2015
Bibliography
edit- Ren, X.-X.; Sekiya, T.; Wang, T.; Yang, Z.-W.; You, H.-L. (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; Lockley, Martin G.; Klein, Hendrik; Gierliński, Gerard D.; Ye, Yong; Zhang, Jianping; Persons, W. Scott; Wang, Tao (2019), "First Thyreophoran Type Tracks from the Middle Jurassic Chuanjie Formation of Yunnan Province, China", Ichnos, 26 (1): 8–15, Bibcode:2019Ichno..26....8X, 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; Lockley, Martin G.; Miyashita, Tetsuto; Klein, Hendrik; Wang, Tao; Persons, W. Scott; Pan, Shi-Gang; Zhang, Jian-Ping; Dong, Zhi-Ming (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 (3–4): 294–303, doi:10.1016/j.palwor.2014.04.003