Irdin Manha Formation
| Irdin Manha Formation | |
|---|---|
| Stratigraphic range: Eocene | |
| Type | Geological formation |
| Location | |
| Coordinates | 43°42′N 112°00′E / 43.7°N 112.0°E |
| Region | Inner Mongolia |
| Country |  China |
| Approximate paleocoordinates | 45°12′N 105°42′E / 45.2°N 105.7°E |
The Irdin Manha Formation is a geological formation from the Eocene located in Inner Mongolia, China, a few kilometres south of the Mongolian border [1]
Description
U.S. paleontologists Henry Fairfield Osborn and Roy C. Andrews discovered two premolars on the site in 1923, and Osborn 1924 assigned the specimen to the new genus Eudinoceras because he believed it to be related to "Dinoceras" (now known as Uintatherium). Within a decade, however, as more complete specimens were recovered, the animal was identified as a Mongolian relative to the North American pantodont Coryphodon. The expedition also lead to the discovery of the only known skull of Andrewsarchus. [2]
See also
References
- ^ Irdin Manha Beds (1930 AMNH Eudinoceras site) (Eocene of China) in the Paleobiology Database. Retrieved July 2013.
- ^ Osborn & Granger 1932
Bibliography
- Osborn, H. F. (1924). "Eudinoceras, Upper Eocene amblypod of Mongolia". American Museum Novitates (145). hdl:2246/3225.
- Osborn, H. F.; Granger, Walter (1932). "Coryphodonts and Uintatheres from the Mongolian Expedition of 1930" (PDF). American Museum Novitates (552). Retrieved 22 July 2013.
- Vickers-Rich, Patricia; Rich, Thomas Hewett (1993). Wildlife of Gondwana. Reed. ISBN 0-7301-0315-3.
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