Ermaying Formation
Appearance
Ermaying Formation | |
---|---|
Stratigraphic range: Anisian ~ | |
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 / 37.43750°N 110.65167°E |
Approximate paleocoordinates | 38°12′N 90°30′E / 38.2°N 90.5°E |
Region | Shaanxi, Shanxi, Inner Mongolia |
Country | China |
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.
References
- ^ Desojo, J. B. (2013). Anatomy, Phylogeny and Palaeobiology of Early Archosaurs and their Kin. ISBN 978-1862393615.
- ^ a b Sues, Hans-Dieter; Fraser, Nicholas C. (2010). Triassic life on land : the great transition. New York: Columbia University Press. ISBN 978-0231135221.