Tuchengzi Formation

Thickness870–2,900 metres (2,850–9,510 ft)^[2]

Tuchengzi Formation
Stratigraphic range: Kimmeridgian-Berriasian ~154–139 Ma PreꞒ Ꞓ O S D C P T J K Pg N ^[1]
Type	Geological formation
Underlies	Zhangjiakou Formation
Overlies	Tiaojishan Formation
Thickness	870–2,900 metres (2,850–9,510 ft)^[2]
Lithology
Primary	Shale
Other	Sandstone, mudstone
Location
Coordinates	42°54′N 124°00′E / 42.9°N 124.0°E / 42.9; 124.0
Approximate paleocoordinates	44°06′N 126°06′E / 44.1°N 126.1°E / 44.1; 126.1
Region	Beijing, Hebei, Liaoning
Country	China
Type section
Named for	Tuchengzi, Beipiao, Liaoning
Named by	Chao-Chi Lin [zh]
Year defined	1942
Tuchengzi Formation (China) Show map of China Tuchengzi Formation (Liaoning) Show map of Liaoning

The Tuchengzi Formation (formerly known as Tucheng Conglomerate, from Chinese: 土城子; pinyin: Tǔchéngzǐ) is a geological formation in China whose strata span the Tithonian (Late Jurassic) to Berriasian (Early Cretaceous) ages.^[1] Dinosaur fossils, particularly footprints, have been found from the formation.^[3]^[4]

Reptiles

Genus	Species	County	Abundance	Notes
Orientognathus	O. chaoyangensis	Chaoyang, Liaoning.^[5]	"An incomplete skeleton (41HIII-0418)".^[5]	A rhamphorhynchid pterosaur.
Chaoyangsaurus	C. youngi	Liaoning.^[6]	"Partial skull with mandible, cervicals, humerus, and scapula."^[7]	A basal ceratopsian.
Grallator	Grallator isp.	Hebei		Footprints belonging to the Grallator form taxon, made by an unknown small theropod.^[8]
Menglongipus	M. sinensis	Hebei		Footprints belonging to the Menglongipus sinensis form taxon, made by an unknown small (~65 cm long) deinonychosaur^[8]

Genus	Species	County	Member	Abundance	Notes	Image
Jurapingquania^[9]	C. sp.	Liaoning			A Clam shrimp

Genus	Species	County	Member	Abundance
Brachyoxylon	B. yanqingense	Yanqing District, Beijing.^[10]		Fossil wood.^[10]
Xenoxylon	X. latiporosum	Yanqing District, Beijing.^[11]		Fossil wood.^[11]
X. peidense	Yanqing District, Beijing.^[11]		Fossil wood.^[11]

References

1 2 3 Liu Y.-Q. Kuang H.-W., Jiang X.-J., Peng N., Xu H. & Sun H.-Y. (2012). "Timing of the earliest known feathered dinosaurs and transitional pterosaurs older than the Jehol Biota." Palaeogeography, Palaeoclimatology, Palaeoecology (advance online publication).
↑ 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.
1 2 3 Weishampel, David B; et al. (2004). "Dinosaur distribution (Late Jurassic, Asia)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 550–552. ISBN 0-520-24209-2.
↑ Xing, Lida; Lockley, Martin G.; Du, Tianming; Zhang, Lijun; Klein, Hendrik; Romilio, Anthony; Persons, W. Scott; Wang, Kuan; Li, Zhenyu; Wan, Xiaoqiao (March 2020). "Dinosaur tracks from the Jurassic-Cretaceous boundary Tuchengzi Formation (Hebei Province, China) used as building stones in the Chengde imperial summer resort: Age, ichnology, and history". Cretaceous Research. 107 104310. Bibcode:2020CrRes.10704310X. doi:10.1016/j.cretres.2019.104310. S2CID 210266977.
1 2 Lü, Junchang; Pu, Hanyong; Xu, Li; Wei, Xuefang (January 2015). "A new rhamphorhynchid pterosaur (Pterosauria) from Jurassic deposits of Liaoning Province, China". Zootaxa. 3911 (1): 119–29. doi:10.11646/zootaxa.3911.1.7. PMID 25661600.
↑ Xijin, Zhao; Zhengwu, Cheng; Xing, Xu (1999-12-13). "The earliest ceratopsian from the Tuchengzi Formation of Liaoning, China". Journal of Vertebrate Paleontology. 19 (4): 681–691. Bibcode:1999JVPal..19..681X. doi:10.1080/02724634.1999.10011181. ISSN 0272-4634.
↑ "Table 22.1," in Weishampel, et al. (2004). Page 480.
1 2 Xing, L.; Harris, J.D.; Sun, D.; Zhao, H. (2010). "The earliest known deinonychosaur tracks from the Jurassic-Cretaceous boundary in Hebei Province, China". Acta Palaeontologica Sinica. 48 (4): 662–671.
↑ Ceccolini, F.; Cianferoni, F. (2024). "A New Replacement Name for an Upper Jurassic Genus of Clam Shrimp (Branchiopoda: Diplostraca)". Paleontological Journal. 57 (8): 915. doi:10.1134/S0031030123080026.
1 2 Cheng, Suzhen; Xu, Shangzhi; Li, Fangyu; Tian, Ning (2022-10-06). "Occurrence of Brachyoxylon wood from the Upper Jurassic of Beijing, northern China". Historical Biology. 35 (10): 1941–1949. doi:10.1080/08912963.2022.2127355. ISSN 0891-2963. S2CID 252792439.
1 2 3 4 Li, Nan; Zhang, Jianping; Xing, Lida; Tian, Ning; Sui, Juxin (2021-09-02). "New records of Jurassic-Cretaceous boundary Tuchengzi Formation petrified wood from Yanqing, Beijing, China: palaeoclimatic implications". Historical Biology. 33 (9): 1686–1696. Bibcode:2021HBio...33.1686L. doi:10.1080/08912963.2020.1726909. ISSN 0891-2963. S2CID 212883753.

Tuchengzi Formation

Reptiles

Crustaceans

Plants

See also

References

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