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: | |
| 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 |
| Approximate paleocoordinates | 32.7°N 99.8°E |
| Region | Yunnan |
| Country |  China |
| Extent | Yimen Basin |
  Fengjiahe Formation (China)  Fengjiahe Formation (Yunnan) | |
Fossil content
Theropod tracks geographically present in Yunnan, China.[3]
| Vertebrates | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
|
S. anlongbaoensis |
Lower part of formation |
Partial skull with lower jaw |
A crested basal theropod, probably a junior synonym of Sinosaurus. |
|||
|
C. chunghoensis[3] |
A basal sauropod. |
|||||
| Lufengosaurus[2] | L. huenei | A massospondylid sauropodomorph. | ||||
|
Y. youngi[3] |
"[Ten] partial skeletons, skull, adult."[4] |
A plateosaurid sauropodomorph. | ||||
| Yunnanosaurus[1] | Y. youngi | A sauropodiformsauropodomorph. | ||||
| Yuxisaurus[5] | 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. | |
References
- 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: 1–7. doi:10.1080/08912963.2021.1984445. ISSN 0891-2963.
- 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. doi:10.1038/s41598-018-23451-x. ISSN 2045-2322. PMC 5864883. PMID 29568005.
- 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.
- "Table 12.1," in Weishampel, et al. (2004). Page 236.
- 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.
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