Stratigraphic range: Bathonian-Oxfordian ~165–153 Ma
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Exposure of the Tiaojishan Formation at Nanshimenzi Village, Qinglong Manchu Autonomous County, Hebei Province, with red arrow pointing to fossiliferous beds
Type
Geological formation
Underlies
Tuchengzi Formation, Houcheng Formation
Overlies
Haifanggou Formation
Thickness
2,420 m (7,940 ft)
Lithology
Primary
Andesite
Other
Sandstone, shale, tuff, coal
Location
Coordinates
41°18′N119°12′E / 41.3°N 119.2°E / 41.3; 119.2
Approximate paleocoordinates
43°00′N123°06′E / 43.0°N 123.1°E / 43.0; 123.1
Region
Hebei, Inner Mongolia, & Liaoning
Country
China
Extent
Yanshan Belt
Tiaojishan Formation (China)
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Tiaojishan Formation (Liaoning)
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The Tiaojishan Formation is a geological formation in Hebei and Liaoning, People's Republic of China, dating to the middle-late Jurassic period (Bathonian-Oxfordian stages). It is known for its exceptionally preserved fossils, including those of plants, insects and vertebrates. It is made up mainly of pyroclastic rock interspersed with basic volcanic and sedimentary rocks. Previously, the Tiaojishan Formation was grouped together with the underlying Haifanggou Formation (also known as the Jiulongshan Formation) as a single "Lanqi Formation."[1] The Tiaojishan Formation forms a key part of the Yanliao Biota assemblage, alongside the Haifanggou Formation.
^Wang, Y.; Ken, S.; Zhang, W.; Zheng, S. (2006). "Biodiversity and palaeoclimate of the Middle Jurassic floras from the Tiaojishan Formation in western Liaoning, China". Progress in Natural Science. 16 (1): 222–230. doi:10.1080/10020070612330087.
and 29 Related for: Tiaojishan Formation information
The TiaojishanFormation is a geological formation in Hebei and Liaoning, People's Republic of China, dating to the middle-late Jurassic period (Bathonian-Oxfordian...
flight-capable) possible avialans are known from the late Jurassic TiaojishanFormation of China, dated to about 160 million years ago. Most researchers...
of Charles Darwin. Anchiornis fossils have been found only in the TiaojishanFormation of Liaoning, China, in rocks dated to the Late Jurassic, about 160...
"Biodiversity and palaeoclimate of the Middle Jurassic floras from the TiaojishanFormation in western Liaoning, China". Progress in Natural Science. 16 (1):...
ankylosaurian dinosaur Bienosaurus lufengensis from the Lower Lufeng Formation of Yunnan, China". Acta Palaeontologica Polonica 64 Alifanov, V. R.; Saveliev...
well-preserved fossils, representing four species, unearthed in the TiaojishanFormation fossil beds (dating to the mid-late Jurassic Period) of Liaoning...
Megaconus and the gliding Arboroharamiya. The plant life of the TiaojishanFormation was dominated by cycadeoids (mainly Nilssonia and Ctenis), leptosporangiate...
in 2006 by Wang et al., argued that the 159-164 million years old TiaojishanFormation underlies, rather than overlies, the Daohugou Beds. Unlike the earlier...
160-million-year-old TiaojishanFormation, as the information provided by the fossil dealer indicated, or from the province's 125-million-year-old Yixian Formation, which...
outside of the TiaojishanFormation includeYixianosaurus longimanus, which was found in the 125 million-year-old Early Cretaceous Yixian Formation. Fujianvenator...
dentition. It was collected in the Daxigou site, Jianchang, from the TiaojishanFormation dated at about 160 million years ago. It was first named by Zhe-Xi...
Jurassic Daohugou Beds of the TiaojishanFormation of Inner Mongolia, China, and possibly the Early Cretaceous Sinuiju Formation of North Korea. The genus...
Recently, exceptionally preserved skeletons have been discovered in the TiaojishanFormation of China. Chinese docodonts include otter-like, mole-like, and squirrel-like...
Beiyanerpeton jianpingensis and Qinglongtriton gangouensis from the TiaojishanFormation of Inner Mongolia, China, dated to the Late Jurassic about 157 million...
was probably collected in the Linglongta area, Jianchang, from the TiaojishanFormation. Xiaotingia was first named by Xu Xing, You Hailu, Du Kai and Han...
a genus of wukongopterid pterosaur from the middle-late Jurassic TiaojishanFormation of northeastern China. The genus contains two species, the type species...
“double”), mylos (Greek for “grinding”). Vilevolodon is known from the TiaojishanFormation in Qinglong County, China. Due to its unique combination of characters...
found in the Yanliao Biota, including both the Daohugou Beds and the TiaojishanFormation in Liaoning province, northern China. The genus has two species:...
; Liu, X. (2008). "Constraints on the upper boundary age of the TiaojishanFormation volcanic rocks in West Liaoning-North Hebei by LA-ICP-MS dating"...
; Liu, X. (2008). "Constraints on the upper boundary age of the TiaojishanFormation volcanic rocks in West Liaoning-North Hebei by LA-ICP-MS dating"...
pterosaur Changchengopterus pani Lü, 2009 from the Late Jurassic TiaojishanFormation of western Liaoning". Neues Jahrbuch für Geologie und Paläontologie...
to Late Jurassic periods of what is now the Daohugou Beds of the TiaojishanFormation in Mutoudeng, Qinglong County of the Hebei province. The remains...
complete skeleton with skull preserved. It was collected from the TiaojishanFormation. It was first named (after Jianchang County) by Lü Junchang and Bo...
small, feathered anchiornithid dinosaur from the Upper Jurassic TiaojishanFormation of Liaoning, China. It is represented by the type species Serikornis...
; Liu, X. (2008). "Constraints on the upper boundary age of the TiaojishanFormation volcanic rocks in West Liaoning-North Hebei by LA-ICP-MS dating"...
approximately 160 million years ago. Fossils were recovered from the TiaojishanFormation in the Liaoning province of China. The generic name is derived from...
paravian (and probably the earliest avialan) fossils come from the TiaojishanFormation of China, which has been dated to the late Jurassic period (Oxfordian...
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