Xintiangou
Description
Source: Wikipédia
The Xintiangou Formation is a geological formation in China. Part of the stratigraphy of the Sichuan Basin, it is of an uncertain Middle Jurassic age, with preliminary U-Pb estimates giving an age range of 170 ma. It predominantly consists of interbedded mudstone and sandstone, with subordinate shelly limestone. At the Laojun site remains of lungfish, bony fish, freshwater sharks, temnospondyls, plesiosaurs, crocodyliformes, the Xinjiangchelyid turtle Protoxinjiangchelys and tritylodontids are known. The dinosaurs Sanxiasaurus, Yunyangosaurus, and indeterminate sauropods are also known from the formation. Theropod and ornithopod tracks have also been reported from the formation.
Découvertes
Source: The Paleobiology Database
Site(s) correspondant(s) à cette formation: 2
Laojun Village : Chongqing - Yunyang Publication(s)
La base comprend 3 publication(s).
Source: The Paleobiology Database
- ↑1 2 N. L. Hu Dai, C. Tan, and X. Hu, Z. Wei, Y. Lin, G. Wei, D. Li, L. Meng, B. Hao, H. You, G. Peng. 2019. A neornithischian dinosaur from the Middle Jurassic Xintiangou Formation of Yunyang, Chongqing, China: the earliest record in Asia. Historical Biology (https://doi.org/10.1080/08912963.2019.1679129)
- ↑1 2 H. Dai and X. Xu. 2019. A new megalosaurid theropod from the Middle Jurassic Xintiangou Formation of Chonqing, People's Republic of China and its implciation for early tetanuran evolution. Society of Vertebrate Paleontology, Abstracts of Papers, 79th Annual Meeting
- ↑1 H. Dai, R. Benson, and X. Hu, C. Tan, N. Li, M. Xiao, H. Hu, Y. Zhou, Z. Wei, F. Zhang, S. Jiang, D. Li, G. Peng, Y. Yu, X. Xu. 2020. A new possible megalosauroid theropod from the Middle Jurassic Xintiangou Formation of Chongqing, People’s Republic of China and its implication for early tetanuran evolution. Scientific Reports 10:139 (https://doi.org/10.1038/s41598-019-56959-x)