Ulansuhai
Description
Source: Wikipédia
The Ulansuhai Formation (simplified Chinese: 乌兰苏海组; traditional Chinese: 烏蘭蘇海組; pinyin: Wūlánsūhǎi Zǔ) is a geological formation in Inner Mongolia, north China. Dinosaur remains are among the fossils that have been recovered from the formation.
The Ulansuhai Formation has traditionally been considered to date to the Aptian-Albian stages of the Lower Cretaceous, due to similarities between the Ulansuhai fauna and known Aptian formations. However, radiometric dating done on underlying formations has shown this to be incorrect. Due to the age of underlying rocks, the Ulansuhai Formation cannot be older than the Turonian stage of the Late Cretaceous, about 92 Ma. Evans et al. (2021) suggested that the formation is likely dated to the Santonian-Campanian ages or older, but younger than 92 million years ago.
Découvertes
Source: The Paleobiology Database
Site(s) correspondant(s) à cette formation: 3
Tsondolein-Khuduk 2 (SSE) : Nei Mongol - ? 13553 14221 78579 250 km W of Ulan-tsonch; main site
"Tsondolien-Khuduk Locality, Nei Mongol Autonomous Region, People’s Republic of China. The Tsondolien-Khuduk locality is approximately 250 km west south-west of the well-known Bayan Mandahu Locality (Eberth, 1993). ... Based on careful study of the map and locality description in Bohlin (1953, Fig 1), and firsthand knowledge of the area by one of us (HY) Tsondolien-Khuduk is located somewhere west of the towns of Ulan Suhai (Suhongtu) and Bayan Mod (Wuliji), and in the vicinity (south) of the Sinornithomimus dongi holotype locality (Kobayashi et al. 2003)" - Evans et al. (2021)- Sinocephale bexelli identifié comme Troodon bexelli n. sp.
- Ceratopsia identifié comme Microceratops gobiensis n. gen. n. sp.
- Nodosauridae
- Suhongtu, Ulan Suhai (MHIDP) : Nei Mongol - ? 14984 28929 30 km NW of Suhongtu, near Ulan Suhai, Alashanzuo Banner, near the boundary of China and Mongolia, in the western part of the Nei Mongol Autonomous Region (aka North Alashan Geological Region); NW of Bayan Mod
- Tashuikou : Nei Mongol - ? 14373 19051 30095 Tashuikou (= Dashuigou, Tao-Suei-Gou), about 60 km N of Chilantai (Jilantai), on E side of Chilantai Salt Lake (Chilantaiyen Chih), E part of Alashan Desert
Publication(s)
La base comprend 8 publication(s).
Source: The Paleobiology Database
- ↑1 2 B. Bohlin. 1953. VI. Vertebrate Palaeontology 6. Fossil reptiles from Mongolia and Kansu. Reports from the Scientific Expedition to the North-western Provinces of China under Leadership of Dr. Sven Hedin. The Sino-Swedish Expedition Publication 37:1-113
- ↑1 K. Carpenter and K. Alf. 1994. Global distribution of dinosaur eggs, nests, and babies. Dinosaur Eggs and Babies, Cambridge University Press, Cambridge
- ↑1 D. C. Evans, C. M. Brown, and H. You, N. E. Campione. 2021. Description and revised diagnosis of Asia's first recorded pachycephalosaurid, Sinocephale bexelli gen. nov., from the Upper Cretaceous of Inner Mongolia, China. Canadian Journal of Earth Sciences 58(10) (https://doi.org/10.1139/cjes-2020-0190)
- ↑1 2 Y. Kobayashi and J. Lü. 2003. A new ornithomimid dinosaur with gregarious habits from the Late Cretaceous of China. Acta Palaeontologica Polonica 48(2):235-259
- ↑1 D. J. Varricchio, P. C. Sereno, and X.-J. Zhao, L. Tan, J. A. Wilson, G. H. Lyon. 2008. Mud-trapped herd captures evidence of distinctive dinosaur sociality. Acta Palaeontologica Polonica 53(4):567-578 (https://doi.org/10.4202/app.2008.0402)
- ↑1 2 S.-Y. Hu. 1964. [Carnosaurian remains from Alashan, Inner Mongolia]. Vertebrata PalAsiatica 8(1):42-63
- ↑1 A. K. Rozhdestvensky. 1965. Vosractnay ismenchivosty i nekotorie voprosi sistematiki dinosavrov Asii [Growth changes in Asian dinosaurs and some problems of their taxonomy]. Paleontologicheskiy Zhurnal 1965(3):95-109
- ↑1 R. B. J. Benson and X. Xing. 2008. The anatomy and systematic position of the theropod dinosaur Chilantaisaurus tashuikouensis Hu, 1964 from the Early Cretaceous of Alanshan, People's Republic of China. Geological Magazine 145(6):778-789 (https://doi.org/10.1017/S0016756808005475)