Irdin Manha Formation
The Irdin Manha Formation is a palaeontological formation from the Eocene located in Inner Mongolia, China, a few kilometres south of the Mongolian border (43°42′N 112°00′E / 43.7°N 112.0°E, paleocoordinates 45°12′N 105°42′E / 45.2°N 105.7°E).[1]
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.[2]
See also
Notes
- ↑ Irdin Manha Beds (1930 AMNH Eudinoceras site) (Eocene of China) in the Paleobiology Database. Retrieved July 2013.
- ↑ Osborn & Granger 1932
References
- Osborn, H. F. (1924). "Eudinoceras, Upper Eocene amblypod of Mongolia". American Museum Novitates. 145. Retrieved July 2013. Check date values in:
|access-date=(help) - Osborn, H. F.; Granger, Walter (1932). "Coryphodonts and Uintatheres from the Mongolian Expedition of 1930" (PDF). American Museum Novitates. 552. Retrieved July 2013. Check date values in:
|access-date=(help) - Vickers-Rich, Patricia; Rich, Thomas Hewett (1993). Wildlife of Gondwana. Reed. ISBN 0-7301-0315-3.
| Paleogene Period | ||
|---|---|---|
| Paleocene Epoch | Eocene Epoch | Oligocene Epoch |
| Danian | Selandian Thanetian |
Ypresian | Lutetian Bartonian |Priabonian |
Rupelian | Chattian |
| Preceded by Proterozoic Eon | Phanerozoic Eon | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Paleozoic Era | Mesozoic Era | Cenozoic Era | ||||||||||
| Cambrian | Ordovician | Silurian | Devonian | Carboniferous | Permian | Triassic | Jurassic | Cretaceous | Paleogene | Neogene | 4ry | |
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