Fengjiahe Formation
Geological formation in Yunnan, China
From Wikipedia, the free encyclopedia
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: | |
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 |
| Approximate paleocoordinates | 32.7°N 99.8°E |
| Region | Yunnan |
| Country | China |
| Extent | Yimen Basin |
  Fengjiahe Formation (China)  Fengjiahe Formation (Yunnan) | |
Fossil content
Dinosaurs
Theropod tracks geographically present in Yunnan, China.[3]
Color key
|
Notes Uncertain or tentative taxa are in small text; |
| Dinosaurs of the Fengjiahe Formation | ||||||
|---|---|---|---|---|---|---|
| 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 | ||||
|
Y. fengming |
Geographically present in Yunnan, China. |
"A partial skeleton including three cervical, five dorsal and 15 caudal vertebrae, several dorsal rib fragments, nearly a dozen chevrons, an incomplete left ilium, and a right ischium." |
A massopodan sauropodomorph | |||
|
Y. youngi[3] |
"[Ten] partial skeletons, skull, adult."[7] |
A plateosaurid sauropodomorph | ||||
| Yunnanosaurus[1] | Y. youngi | A sauropodiform sauropodomorph | ||||
| Yuxisaurus[8] | 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 | |