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Zuoyun Formation

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Early Cretaceous geologic formation in China
Zuoyun Formation
Stratigraphic range: Albian PreꞒ Ꞓ O S D C P T J K Pg N
TypeGeological formation
UnderliesZhumapu Formation
Lithology
PrimaryConglomerate, mudstone
Location
Coordinates40°00′N 112°42′E / 40.0°N 112.7°E / 40.0; 112.7
Approximate paleocoordinates42°24′N 104°06′E / 42.4°N 104.1°E / 42.4; 104.1
RegionShanxi Province
Country China
Zuoyun Formation is located in ChinaZuoyun FormationZuoyun Formation (China)Show map of ChinaZuoyun Formation is located in ShanxiZuoyun FormationZuoyun Formation (Shanxi)Show map of Shanxi

The Zuoyun Formation is an Early Cretaceous (estimated Albian) geologic formation in Shanxi Province, China. Dinosaur fossils attributable to the genus level are known from this formation. During the Early Cretaceous, the Zuoyun area was generally dominated by an arid subtropical environment. There was irregular alternation of arid and humid climate, during which catastrophic flooding resulted in thick proluvial fan conglomerate-mudstone deposits.

Dinosaurs

Remains of the following dinosaurs have been found in the formation:

Color key
Taxon Reclassified taxon Taxon falsely reported as present Dubious taxon or junior synonym Ichnotaxon Ootaxon Morphotaxon
Notes
Uncertain or tentative taxa are in small text; crossed out taxa are discredited.

Dinosaurs

Genus Species Location Stratigraphic position Material Notes Images
Yanbeilong Y. ultimus Sacrum, pelvic girdle, dorsal vertebrae, and one caudal vertebra A stegosaurian

See also

References

  1. ^ Jia, Lei; Li, Ning; Dong, Liyang; Shi, Jianru; Kang, Zhishuai; Wang, Suozhu; Xu, Shichao; You, Hailu (2024-01-31). "A new stegosaur from the late Early Cretaceous of Zuoyun, Shanxi Province, China". Historical Biology: 1–10. doi:10.1080/08912963.2024.2308214. ISSN 0891-2963. Cite error: The named reference "Yanbeilong" was defined multiple times with different content (see the help page).
  2. Yu,J.-X. (1986) The sporo-pollen assemblage from the Zuoyun Formation in Northwestern Shanxi and paleoclimate. Geological Review (Dizhi Lunping) Vol. 32:3, pg. 217- 224
  3. 董黎阳, 伊剑; DONG Liyang, YI Jian (2018-03-24). "山西左云地区下白垩统左云组沉积相及其古气候意义". 地质论评 (in Chinese). 64 (2): 392–404. ISSN 0371-5736.
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