Abstract
In 2015, a large dinosaur fossil burial site was found in Pu’an Township, Yunyang, Chongqing, northeast of Sichuan Basin, which was another major discovery in the Sichuan after Dashanpu, Zigong. The fossils are enriched in the Middle Jurassic **ntiangou Formation and Shaximiao Formation. The main fossils of the **ntiangou Formation are dinosaurs, plesiosaurs, turtles, and fish. Their burial environment was on a lacustrine delta. The fauna living in the area were quickly buried by the sand carried by a river after death. At present, only dinosaur fossils have been found in the Shaximiao Formation, especially in the lower section, and a 150 m long fossil wall has been exposed. Its burial environment was a flood plain. The dinosaurs living in the area were quickly buried by a sand body spewed out by a mud volcano after their death.
![](http://media.springernature.com/m312/springer-static/image/art%3A10.1134%2FS1028334X22040080/MediaObjects/11471_2022_3825_Fig1_HTML.png)
![](http://media.springernature.com/m312/springer-static/image/art%3A10.1134%2FS1028334X22040080/MediaObjects/11471_2022_3825_Fig2_HTML.png)
![](http://media.springernature.com/m312/springer-static/image/art%3A10.1134%2FS1028334X22040080/MediaObjects/11471_2022_3825_Fig3_HTML.png)
![](http://media.springernature.com/m312/springer-static/image/art%3A10.1134%2FS1028334X22040080/MediaObjects/11471_2022_3825_Fig4_HTML.png)
![](http://media.springernature.com/m312/springer-static/image/art%3A10.1134%2FS1028334X22040080/MediaObjects/11471_2022_3825_Fig5_HTML.png)
Similar content being viewed by others
REFERENCES
H. Dai, Q. Y. Ma. X. F. Hu, et al., Acta Geol. Sin.-Engl. 94 (01), 216–217 (2020).
N. Li, H. Dai, C. Tan, et al., Hist. Biol. 37 (7), 1089–1102 (2021).
H. Dai, R. Benson, X. F. Hu, et al., Sci. Rep. 10 (1), 1–16 (2020).
F. Zhang, H. D. Yu, C. **ong, et al., J. Palaegeogr. 9 (1), 1–11 (2020).
X. F. Hu, L. Li, H. Dai, et al., Ann. Paleontol. 106 (4), 102440 (2020).
H. L. Zhang, W. G. Yang, H. Dai, et al., Episodes 44 (4), 401–418 (2021).
Y. X. Zhou, H. Q. Hu, H. Dai, et al., Geol. Bull. China 39 (10), 1527–1537 (2020).
X. H. Chen, J. L. Zeng, T. S. Zhang, et al., Acta Geol. Sin. 93 (12), 3223–3238 (2019).
H. L. Zhang, W. G. Yang, Y. X. Zhou, et al., Mineral. Petrol. 40 (2), 26–35 (2020).
Y. Zhong, L. D. Zhu, W. G. Yang, et al., J. Chengdu Univ. Technol. 48 (2), 165–177 (2021).
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
The authors declare that they have no conflicts of interest.
Rights and permissions
About this article
Cite this article
De-Liang, L., Hai-Dong, Y., Li, M. et al. The Fossil Taphonomic Patterns and Age of the Newly Discovered Large Dinosaur Fossil Groups in the Yunyang Area, Northeast Sichuan Basin, China. Dokl. Earth Sc. 503, 189–194 (2022). https://doi.org/10.1134/S1028334X22040080
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1028334X22040080