Ermaying Formation

Ermaying Formation
Stratigraphic range: Anisian
~247–242 Ma

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Ermaying Formation; Stratigraphic range: Anisian; ~247–242 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Type	Geological formation
Sub-units	Two Members
Underlies	Tongchuan & Xingshikou Formations
Overlies	Liujiagou Formation
Thickness	Up to 600 metres (2,000 ft)
Lithology
Primary	Mudstone, sandstone
Other	Tuff
Location
Coordinates	37°26′15″N 110°39′06″E
Approximate paleocoordinates	38.2°N 90.5°E
Region	Shaanxi, Shanxi, Inner Mongolia
Country	China
	Ermaying Formation (China) Ermaying Formation (Shanxi)

The Ermaying Formation is a sedimentary succession of Anisian (Middle Triassic) age. It is found in the Shaanxi Province of China.[1] It is composed of an up to 600 m thick sequence of mudstone and sandstone.[2] It is famous for its fossils of tetrapods.[2]

Fossil content

Notable fossils include the genera Fenhosuchus, Eumetabolodon, Halazhaisuchus, Guchengosuchus, Neoprocolophon, Ordosiodon, Wangisuchus and Shansisuchus.

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References

Desojo, J. B. (2013). Anatomy, Phylogeny and Palaeobiology of Early Archosaurs and their Kin. ISBN 978-1862393615.
Sues, Hans-Dieter; Fraser, Nicholas C. (2010). Triassic life on land : the great transition. New York: Columbia University Press. ISBN 978-0231135221.

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[Desojo-1] Desojo, J. B. (2013). Anatomy, Phylogeny and Palaeobiology of Early Archosaurs and their Kin. ISBN 978-1862393615.

[Sue_2010-2] Sues, Hans-Dieter; Fraser, Nicholas C. (2010). Triassic life on land : the great transition. New York: Columbia University Press. ISBN 978-0231135221.