Khuren Dukh Formation
| Khuren Dukh Formation | |
|---|---|
| Stratigraphic range: Early Cretaceous (Aptian–Albian), | |
| Type | Geological formation | 
| Sub-units | Lower, Middle & Upper Members | 
| Underlies | Terrace deposit, Basalt | 
| Overlies | Khalzan Uul Formation, Basement | 
| Thickness | Over 100 m (330 ft) | 
| Lithology | |
| Primary | Sandstone, conglomerate, siltstone, mudstone | 
| Location | |
| Coordinates | 45°54′N 108°24′E / 45.9°N 108.4°E | 
| Approximate paleocoordinates | 49°18′N 100°12′E / 49.3°N 100.2°E | 
| Region | Dornogovi Province | 
| Country | Mongolia | 
| Extent | Choyr Basin | 
The Khuren Dukh Formation, also known as the Khukhtyk Formation, Khukhteeg Formation, or Hühteeg Svita, (Mongolian: Хөхтээг формаци, Khökhteeg Formatsi), is a geological formation in Mongolia whose strata date back to the Aptian–Albian ages of the Early Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation.