Liangtoutang Formation

Liangtoutang Formation
Stratigraphic range: Albian-Cenomanian ~105.9–96  Ma PreꞒ Ꞓ O S D C P T J K Pg N
Type	Geological formation
Unit of	Tiantai Group
Underlies	Chichengshan Formation
Overlies	Tangshang Formation
Thickness	About 300 m (980 ft)
Lithology
Primary	Sandstone
Location
Coordinates	28°42′N120°12′E / 28.7°N 120.2°E / 28.7; 120.2
Approximate paleocoordinates	36°18′N120°00′E / 36.3°N 120.0°E / 36.3; 120.0
Region	Zhejiang
Country	China
Extent	Huzhen Basin
Liangtoutang Formation (China) Show map of China Liangtoutang Formation (Zhejiang) Show map of Zhejiang

The Liangtoutang Formation, also referred to as the Laijia Formation is a geological formation located in Zhejiang, China. Its strata date back to the Albian to Cenomanian stages of the Cretaceous period, between 105.9 and 96 million years ago. ^[1] The lithology primarily consists of red sandstone.

Fossil content

Color key Taxon Reclassified taxon Taxon falsely reported as present Dubious taxon or junior synonym Ichnotaxon Ootaxon Morphotaxon		Notes Uncertain or tentative taxa are in small text; crossed out taxa are discredited.

Dinosaurs

Ankylosaurs

Ankylosaurs of the Liangtoutang Formation
Genus	Species	Location	Stratigraphic position	Material	Notes	Images
Jinyunpelta [2]	J. sinensis			"An almost complete skull" and two partial postcranial skeletons	A ankylosaurine ankylosaurind

Ornithopods

Ornithopods of the Liangtoutang Formation
Genus	Species	Location	Stratigraphic position	Material	Notes	Images
Yueosaurus [3]	Y. tiantaiensis			"Partial postcranial skeleton"	A thescelosaurine thescelosaurid

Eggs

Eggs of the Liangtoutang Formation
Genus	Species	Location	Stratigraphic position	Material	Notes	Images
Macroelongatoolithus	M. xixiaensis
Pachycorioolithus	P. jinyunensis
Testudoolithus	T. jiangi

References

1. Liangtoutang Formation at Fossilworks.org
2. Wenjie Zheng; Xingsheng Jin; Yoichi Azuma; Qiongying Wang; Kazunori Miyata; Xing Xu (2018). "The most basal ankylosaurine dinosaur from the Albian–Cenomanian of China, with implications for the evolution of the tail club". Scientific Reports. 8 (1): Article number 3711. Bibcode:2018NatSR...8.3711Z. doi:10.1038/s41598-018-21924-7. PMC   5829254 . PMID   29487376.
3. Zheng, Wenjie; Xingsheng Jin; Masateru Shibata; Yoichi Azuma & Fangming Yu (2012). "A new ornithischian dinosaur from the Cretaceous Liangtoutang Formation of Tiantai, Zhejiang Province, China". Cretaceous Research. 34: 208–219. Bibcode:2012CrRes..34..208Z. doi:10.1016/j.cretres.2011.11.001.

Bibliography

• Zheng, Wenjie; Jin, Xingsheng; Azuma, Yoichi; Wang, Qiongying; Miyata, Kazunori; Xu, Xing (2018), "The most basal ankylosaurine dinosaur from the Albian–Cenomanian of China, with implications for the evolution of the tail club", Scientific Reports , 8 (1): Article number 3711, Bibcode:2018NatSR...8.3711Z, doi:10.1038/s41598-018-21924-7, PMC   5829254 , PMID   29487376
• Lawver, D. R.; Jin, X.; Jackson, F. D.; Wang, Q. (2016), "An avian egg from the Lower Cretaceous (Albian) Liangtoutang Formation of Zhejiang Province, China", Journal of Vertebrate Paleontology , 36 (3): e1100631:1–7, Bibcode:2016JVPal..36E0631L, doi:10.1080/02724634.2016.1100631
• Zheng, Wenjie; Jin, Xingsheng; Shibata, Masateru; Azuma, Yoichi; Yu, Fangming (2012), "A new ornithischian dinosaur from the Cretaceous Liangtoutang Formation of Tiantai, Zhejiang Province, China", Cretaceous Research , 34: 208–219, Bibcode:2012CrRes..34..208Z, doi:10.1016/j.cretres.2011.11.001
• Jin, X.; Azuma, Y.; Jackson, F. D.; Varricchio, D. J. (2007), "Giant dinosaur eggs from the Tiantai basin, Zhejiang province, China", Canadian Journal of Earth Sciences , 44 (1): 81–88, Bibcode:2007CaJES..44...81J, doi:10.1139/e06-077