Nemegt Formation
| Nemegt Formation | |
|---|---|
| Stratigraphic range: Maastrichtian ~ | |
Nemegt, the type locality of the Nemegt Formation | |
| Type | Geological formation |
| Sub-units | Lower, Middle and Upper units |
| Underlies | Alluvium |
| Overlies | Barun Goyot Formation |
| Thickness | Over 235 m (771 ft) |
| Lithology | |
| Primary | Shale, sandstone |
| Other | Mudstone, conglomerate |
| Location | |
| Coordinates | 43°30′N 101°00′E / 43.5°N 101.0°E |
| Approximate paleocoordinates | 40°48′N 90°12′E / 40.8°N 90.2°E |
| Region | Bayankhongor Aimag, Omnogov, Ovorkhangai |
| Country | Mongolia |
| Extent | Gobi Desert |
Cretaceous-aged dinosaur fossil localities of Mongolia. Nemegt localities at area A. | |
The Nemegt Formation (also known as Nemegtskaya Svita) is a geological formation in the Gobi Desert of Mongolia, dating to the Late Cretaceous. The formation consists of river channel sediments and contains fossils of fish, turtles, crocodilians, and a diverse fauna of dinosaurs, including birds.