Fengjiahe Formation
{{Short description|Geological formation in Yunnan, China}}
{{Infobox rockunit
| name = Fengjiahe Formation
| image = File:Fengjiahe Formation.jpg
| caption = Outcrop of the Fengjiahe Formation in a quarry which is also the type locality of Yuxisaurus kopchicki
| type = Geological formation
| age = {{fossilrange|Pliensbachian}}
| period = Pliensbachian
| prilithology = Mudstone, siltstone
| otherlithology = Sandstone
| namedfor =
| namedby =
| region = Yunnan
| country = {{CHN}}
| coordinates = {{coord|24.7|N|101.6|E|display=inline,title}}
| paleocoordinates = {{coord|32.7|N|99.8|E|display=inline}}
| unitof =
| subunits =
| underlies = Zhanghe Formation
| overlies = Shezi Formation
| thickness = Up to {{convert|1500|m|ft|abbr=on}}
| extent = Yimen Basin
| area =
| map = {{Location map+ | China#Yunnan
| relief = 1
| width = 250
| float = center
| places =
{{Location map~ | China#Yunnan
| lat_deg = 24.7
| lon_deg = 101.6
| mark = Blue pog.svg
| marksize = 12
}}
}}
| map_caption =
}}
The Fengjiahe Formation is a geological formation in China. It dates back to the Early Jurassic, most likely to the Pliensbachian.{{Cite journal|last1=Ren|first1=Xin-Xin|last2=Su|first2=Xing|last3=Wang|first3=Guo-Fu|last4=You|first4=Hai-Lu|date=2021-10-04|title=Sedimentological evidence suggests an Early Jurassic age for Yunnanosaurus youngi (Dinosauria: Sauropodomorpha) in Yunnan Province of China|url=https://www.tandfonline.com/doi/full/10.1080/08912963.2021.1984445|journal=Historical Biology|volume=34 |issue=9 |language=en|pages=1827–1833|doi=10.1080/08912963.2021.1984445|s2cid=244227159 |issn=0891-2963}} 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"{{Cite journal|last1=Xing|first1=Lida|last2=Rothschild|first2=Bruce M.|last3=Randolph-Quinney|first3=Patrick S.|last4=Wang|first4=Yi|last5=Parkinson|first5=Alexander H.|last6=Ran|first6=Hao|date=December 2018|title=Possible bite-induced abscess and osteomyelitis in Lufengosaurus (Dinosauria: sauropodomorph) from the Lower Jurassic of the Yimen Basin, China|journal=Scientific Reports|volume=8|issue=1|pages=5045|doi=10.1038/s41598-018-23451-x|issn=2045-2322|pmc=5864883|pmid=29568005|bibcode=2018NatSR...8.5045X }}
Fossil content
Theropod tracks geographically present in Yunnan, China.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}}.