Suining Formation Explained

Suining Formation
Type:	Geological formation
Period:	Berriasian
Prilithology:	Mudstone
Otherlithology:	Sandstone, siltstone
Region:	Asia
Unitof:	Sichuan Basin
Underlies:	Penglaizhen Formation
Overlies:	Upper Shaximiao Formation
Thickness:	Several hundred meters

The Suining Formation 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

Dinosaurs

Genus	Species	Presence	Notes	Images
Mamenchisaurus^[2]	M. anyuensis	Geographically located in Sichuan, China.
Qijianglong^[3]	Q. guokr

Fish

See also

• Qijianglong
• List of dinosaur-bearing rock formations

References

Bibliography

• Book: . David B. . . Peter . . Halszka . 2004 . The Dinosauria. 2nd . Berkeley. University of California Press . 1–880 . 2019-02-21. 0-520-24209-2.

Notes and References

1. Wang . Jun . Norell . Mark A. . Pei . Rui . Ye . Yong . Chang . Su-Chin . Surprisingly young age for the mamenchisaurid sauropods in South China . Cretaceous Research . July 2019 . 104 . 104176 . 10.1016/j.cretres.2019.07.006 . 2019CrRes.10404176W .
2. Book: Weishampel, David B . etal . 2004 . Dinosaur distribution (Late Jurassic, Asia) . Weishampel . David B. . Dodson . Peter . Osmólska . Halszka . The Dinosauria . limited . 2nd . Berkeley . University of California Press . 550–552 . 0-520-24209-2 .
3. Lida Xing . Tetsuto Miyashita . Jianping Zhang . Daqing Li . Yong Ye . Toru Sekiya . Fengping Wang . 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 . 10.1080/02724634.2014.889701 . 86062974 .
4. Alison M. Murray . Lida Xing . Julien Divay . Juan Liu . . 2015 . A Late Jurassic freshwater fish (Ginglymodi, Lepisosteiformes) from Qijiang, Chongqing, China . Journal of Vertebrate Paleontology . 35 . 2 . e911187 . 10.1080/02724634.2014.911187 . 2015JVPal..35E1187M . 85946657 .