Wikipedia

Zuoyun Formation

The Zuoyun Formation is an Early Cretaceous (estimated Albian)[1] geologic formation in Shanxi Province, China.[2] Dinosaur fossils attributable to the genus level are known from this formation.[1] 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.[3]

Zuoyun Formation
Stratigraphic range: Albian
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 China
Zuoyun Formation
Zuoyun Formation (China)
Zuoyun Formation is located in Shanxi
Zuoyun Formation
Zuoyun Formation (Shanxi)

Dinosaurs

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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

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Ornithopods

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Ornithopods of the Zuoyun Formation
Genus Species Location Stratigraphic position Material Notes Images
Yanbeilong[4] Y. ultimus Sacrum, Ilium, Ischium, Pubis, 7 Dorsal Vertebrae and 1 Caudal Vertebra A stegosaurian
 

Sauropods

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Sauropods of the Zuoyun Formation
Genus Species Location Stratigraphic position Material Notes Images

Theropods

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Theropods of the Zuoyun Formation
Genus Species Location Stratigraphic position Material Notes Images

Pterosaurs

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Pterosaurs of the Zuoyun Formation
Genus Species Location Stratigraphic position Material Notes Images

Crocodylomorphs

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Crocodylomorphs of the Zuoyun Formation
Genus Species Location Stratigraphic position Material Notes Images

Reptiles

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Reptiles of the Zuoyun Formation
Genus Species Location Stratigraphic position Material Notes Images

Turtles

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Turtles of the Zuoyun Formation
Genus Species Location Stratigraphic position Material Notes Images

Amphibians

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Amphibians of the Zuoyun Formation
Genus Species Location Stratigraphic position Material Notes Images

Fish

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Fishes of the Zuoyun Formation
Genus Species Location Stratigraphic position Material Notes Images

Crustaceans

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Crustaceans of the Zuoyun Formation
Genus Species Location Stratigraphic position Material Notes Images

Mammals

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Mammals of the Zuoyun Formation
Genus Species Location Stratigraphic position Material Notes Images

See also

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References

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  1. ^ a b 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.
  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.
  4. ^ 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. S2CID 267465456.
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