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Suining Formation

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Suining Formation
Stratigraphic range: Late Jurassic–Early Cretaceous
TypeGeological formation
Unit ofSichuan Basin
UnderliesPenglaizhen Formation
OverliesUpper Shaximiao Formation
ThicknessSeveral hundred meters
Lithology
PrimaryMudstone
OtherSandstone, siltstone
Location
RegionAsia
Country China

The Suining Formation (simplified Chinese: 遂宁组; traditional Chinese: 遂寧組; pinyin: Suìníng Zǔ) is a geological formation in China whose strata date back to the Early Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation. A 2019 paper shows zircon dating of the Suining Formation with a much younger age for the classically thought of Late Jurassic formation; the average age of the dating being roughly 114 myo or late upper Aptian.[1]

Paleobiota

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Dinosaurs

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Genus Species Presence Notes Images

Mamenchisaurus[2]

M. anyuensis[2]

Geographically located in Sichuan, China.[2]

Qijianglong[3]

Q. guokr

Fish

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Genus Species Presence Notes Images

Beiduyu[4]

B. qijiangensis

See also

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References

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  1. ^ Wang, Jun; Norell, Mark A.; Pei, Rui; Ye, Yong; Chang, Su-Chin (July 2019). "Surprisingly young age for the mamenchisaurid sauropods in South China". Cretaceous Research. 104: 104176. Bibcode:2019CrRes.10404176W. doi:10.1016/j.cretres.2019.07.006.
  2. ^ a b c Weishampel, David B; et al. (2004). "Dinosaur distribution (Late Jurassic, Asia)". In Weishampel, David B.; Dodson, Peter; Osmólska, Halszka (eds.). The Dinosauria (2nd ed.). Berkeley: University of California Press. pp. 550–552. ISBN 0-520-24209-2.
  3. ^ Lida Xing; Tetsuto Miyashita; Jianping Zhang; Daqing Li; Yong Ye; Toru Sekiya; Fengping Wang; Philip J. Currie (2015). "A new sauropod dinosaur from the Late Jurassic of China and the diversity, distribution, and relationships of mamenchisaurids". Journal of Vertebrate Paleontology. 35 (1): e889701. doi:10.1080/02724634.2014.889701. S2CID 86062974.
  4. ^ Alison M. Murray; Lida Xing; Julien Divay; Juan Liu; Fengping Wang (2015). "A Late Jurassic freshwater fish (Ginglymodi, Lepisosteiformes) from Qijiang, Chongqing, China". Journal of Vertebrate Paleontology. 35 (2): e911187. Bibcode:2015JVPal..35E1187M. doi:10.1080/02724634.2014.911187. S2CID 85946657.

Bibliography

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