Fengjiahe Formation

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]

Fengjiahe Formation
Stratigraphic range: Pliensbachian PreꞒ Ꞓ O S D C P T J K Pg N
Outcrop of the Fengjiahe Formation in a quarry which is also the type locality of Yuxisaurus kopchicki
Type	Geological formation
Underlies	Zhanghe Formation
Overlies	Shezi Formation
Thickness	Up to 1,500 m (4,900 ft)
Lithology
Primary	Mudstone, siltstone
Other	Sandstone
Location
Coordinates	24.7°N 101.6°E / 24.7; 101.6
Approximate paleocoordinates	32.7°N 99.8°E / 32.7; 99.8
Region	Yunnan
Country	China
Extent	Yimen Basin
Fengjiahe Formation (China) Show map of China Fengjiahe Formation (Yunnan) Show map of Yunnan

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[3]	C. chunghoensis[3]	Geographically present in Yunnan, China.[3]			A basal sauropod
Irisosaurus[4][5]	I. yimenensis				A sauropodiform sauropomorph
Lufengosaurus[2]	L. huenei				A massospondylid sauropodomorph
Yimenosaurus[3]	Y. youngi[3]	Geographically present in Yunnan, China.[3]		"[Ten] partial skeletons, skull, adult."[6]	A plateosaurid sauropodomorph
Yunnanosaurus[1]	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

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): 1827–1833. doi:10.1080/08912963.2021.1984445. ISSN 0891-2963. S2CID 244227159.
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. Bibcode:2018NatSR...8.5045X. doi:10.1038/s41598-018-23451-x. ISSN 2045-2322. PMC 5864883. PMID 29568005.
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. ISBN 0-520-24209-2.
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. Bibcode:2020NatSR..1010961P. doi:10.1038/s41598-020-67754-4. PMC 7335049. PMID 32620800.
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. doi:10.1038/s41598-020-74208-4. PMC 7542162. PMID 33028950.
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". eLife. 11: e75248. doi:10.7554/eLife.75248. PMC 8929930. PMID 35289749.