Fengjiahe Formation Explained

Fengjiahe Formation
Type:	Geological formation
Period:	Pliensbachian
Prilithology:	Mudstone, siltstone
Otherlithology:	Sandstone
Region:	Yunnan
Coordinates:	24.7°N 101.6°W
Paleocoordinates:	32.7°N 99.8°W
Underlies:	Zhanghe Formation
Overlies:	Shezi Formation
Thickness:	Up to 1500m (4,900feet)
Extent:	Yimen Basin

The Fengjiahe Formation is a geological formation in China. It dates back to the Early Jurassic, most likely to the Pliensbachian.^[1] The formation is up to 1500 metres thick and consists of "purple-red mudstone and argillaceous siltstone interbedded with gray-green and yellow-green quartz sandstone and feldspathic quartz sandstone"^[2]

Fossil content

Theropod tracks geographically present in Yunnan, China.^[3]

Vertebrates
Genus	Species	Location	Stratigraphic position	Material	Notes	Images
Shuangbaisaurus	S. anlongbaoensis	Shuangbai County	Lower part of formation	Partial skull with lower jaw	A crested basal theropod, probably a junior synonym of Sinosaurus
Chinshakiangosaurus	C. chunghoensis	Geographically present in Yunnan, China.			A basal sauropod
Irisosaurus^[4] ^[5]	I. yimenensis				A sauropodiform sauropomorph
Lufengosaurus	L. huenei				A massospondylid sauropodomorph
Yimenosaurus	Y. youngi	Geographically present in Yunnan, China.		"[Ten] partial skeletons, skull, adult."^[6]	A plateosaurid sauropodomorph
Yunnanosaurus	Y. youngi				A sauropodiform sauropodomorph
Yuxisaurus^[7]	Y. kopchicki	Yuxi Prefecture, Yunnan, China	Upper	Partial skeleton including a partial skull, cervical and dorsal vertebrae, scapulae, right humerus, left femur, and osteoderms	A basal thyreophoran

See also

• List of dinosaur-bearing rock formations

Notes and References

1. Ren. Xin-Xin. Su. Xing. Wang. Guo-Fu. You. Hai-Lu. 2021-10-04. Sedimentological evidence suggests an Early Jurassic age for Yunnanosaurus youngi (Dinosauria: Sauropodomorpha) in Yunnan Province of China. Historical Biology. 34 . 9 . en. 1827–1833. 10.1080/08912963.2021.1984445. 244227159 . 0891-2963.
2. Xing. Lida. Rothschild. Bruce M.. Randolph-Quinney. Patrick S.. Wang. Yi. Parkinson. Alexander H.. Ran. Hao. December 2018. Possible bite-induced abscess and osteomyelitis in Lufengosaurus (Dinosauria: sauropodomorph) from the Lower Jurassic of the Yimen Basin, China. Scientific Reports. 8. 1. 5045. 10.1038/s41598-018-23451-x. 2045-2322. 5864883. 29568005. 2018NatSR...8.5045X .
3. Weishampel, David B; et al. (2004). "Dinosaur distribution (Early Jurassic, Asia)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 534–535. .
4. Claire Peyre de Fabrègues . Shundong Bi . Hongqing Li . Gang Li . Lei Yang . Xing Xu . 2020 . A new species of early-diverging Sauropodiformes from the Lower Jurassic Fengjiahe Formation of Yunnan Province, China . Scientific Reports . 10 . 1 . Article number 10961 . 10.1038/s41598-020-67754-4 . 32620800 . 7335049 . 2020NatSR..1010961P .
5. Claire Peyre de Fabrègues . Shundong Bi . Hongqing Li . Gang Li . Lei Yang . Xing Xu . 2020 . Author Correction: A new species of early-diverging Sauropodiformes from the Lower Jurassic Fengjiahe Formation of Yunnan Province, China . Scientific Reports . 10 . 1 . Article number 17086 . 10.1038/s41598-020-74208-4 . 33028950 . 7542162 .
6. "Table 12.1," in Weishampel, et al. (2004). Page 236.
7. Yao . X. . Barrett . P. M. . Lei . Y. . Xu . X. . Bi . S. . 2022-03-15 . A new early-branching armoured dinosaur from the Lower Jurassic of southwestern China . . 11 . e75248 . 10.7554/eLife.75248. 35289749. 8929930 . free .