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.[1]
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.[1] 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.[2][3]
^ abWeishampel, David B; et al. (2004). "Dinosaur distribution (Early Cretaceous, Asia)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 563-570. ISBN 0-520-24209-2.
^Kobayashi, Y., and Lu, J.-C. (2003). "A new ornithomimid dinosaurian with gregarious habits from the Late Cretaceous of China." Acta Palaeontol. Pol., 48: 235–259.
^Benson, R.B.J. and Xu, X. (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."
Geol. Mag., 145: 778–789. doi:10.1017/S0016756808005475
and 23 Related for: Ulansuhai Formation information
The UlansuhaiFormation (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...
ankylosaurian dinosaur Bienosaurus lufengensis from the Lower Lufeng Formation of Yunnan, China". Acta Palaeontologica Polonica 64 Alifanov, V. R.; Saveliev...
remains were found in 1997, in the Late Cretaceous strata of the UlansuhaiFormation located at Alshanzuo Banner, Inner Mongolia Autonomous Region, Northern...
neovenatorid or a primitive coelurosaur, from the Late Cretaceous UlansuhaiFormation of China (Turonian age, about 92 million years ago). The type species...
"La Amarga Formation." Weishampel, et al. (2004). Pg. 571. "Los Colorados Formation." Weishampel, et al. (2004). Pg. 528. "UlansuhaiFormation." Weishampel...
mid-Cretaceous (Late Cenomanian to the end of the Turonian stage) UlansuhaiFormation of China (about 92 million years ago). The type species, S. maortuensis...
but it is currently thought to originate in rocks belonging to the UlansuhaiFormation. During the early 20th century, Swedish palaeontological expeditions...
The Minhe Formation (simplified Chinese: 民和组; traditional Chinese: 民和組; pinyin: Mínhé Zǔ) is a geological formation in northwestern China, whose strata...
now the Haoling Formation. Zhongyuansaurus is possibly a junior synonym of Gobisaurus, a basal ankylosaurid from the UlansuhaiFormation of Inner Mongolia...
decades. The holotype, IVPP V12563, was found in a layer of the UlansuhaiFormation. In 2001, an Aptian age was presumed but later studies indicate it...
recovered from named geologic formations (e.g. the Morrison Formation or the Hell Creek Formation). When this is not the case, a city or landmark near the...
pachycephalosaurine squamosals as revealed by juvenile specimens from the Hell Creek Formation, eastern Montana". Journal of Vertebrate Paleontology. 29 (1): 291–294...
recovered from named geologic formations (e.g. the Morrison Formation or the Hell Creek Formation). When this is not the case, a city or landmark near the...
crocodyliform) teeth and osteoderms from the Upper Cretaceous Cerro Fortaleza Formation (Argentina), and on its implications for the knowledge of the archosaur...
R. (2001). "A new fossil frog from the Upper Cretaceous Judith River Formation of Montana". Journal of Vertebrate Paleontology. 21 (1): 190–194. doi:10...
Images Chilantaisaurus Valid taxon Hu S. Late Cretaceous (Turonian) UlansuhaiFormation China A member of Neovenatoridae. Eustreptospondylus Valid taxon...
rivers and rains turned it into a freshwater lake. There are limestone formations at the foot of the adjacent Dongting Mountain (洞庭山). These "scholar's...
County of Yunnan Province and the Yanyuan County of Sichuan Province. The formation of the lake is thought to have occurred in a geological fault belonging...
The remains of multiple individuals were recovered from a bonebed in Ulansuhai. 2001 Thom Holtz performed another cladistic analysis which concluded...
area of the lake is 200 square kilometres. The lake was formed from the formation of an orogeny of the Himalayas 249 million years ago, and once held approximately...
published "One Explanation of the Formation of West Lake". While supporting Zhu's arguments, he supplemented that the formation of West Lake started with tidal...
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