Iren Dabasu Formation

Iren Dabasu Formation
Stratigraphic range: Late Cretaceous
TypeGeological formation
OverliesArshanto Formation
AreaErenhot (Erlian) city
ThicknessUp to 500 m (1,600 ft)
Lithology
PrimarySandstone, claystone, siltstone
OtherGlutenite
Location
Coordinates43°48′N 112°24′E / 43.8°N 112.4°E / 43.8; 112.4
Approximate paleocoordinates43°06′N 101°00′E / 43.1°N 101.0°E / 43.1; 101.0
RegionInner Mongolia
Country China
ExtentErlian Basin
Type section
Named forIren Dabasu
Named byOsborn
Year defined1922
Iren Dabasu Formation is located in China
Iren Dabasu Formation
Iren Dabasu Formation (China)
Iren Dabasu Formation is located in Inner Mongolia
Iren Dabasu Formation
Iren Dabasu Formation (Inner Mongolia)

The Iren Dabasu Formation (also known as Erlian Formation) is a Late Cretaceous geologic formation in the Iren Nor region of Inner Mongolia. Dinosaur remains diagnostic to the genus level are among the fossils that have been recovered from the formation. The formation was first described and defined by Henry Fairfield Osborn in 1922 and it is located in the Iren Nor region of China.[1]

  1. ^ Osborn, H. F. (1922). "Discovery of Cretaceous and older Tertiary strata in Mongolia". Science. 56 (1446): 291–293. Bibcode:1922Sci....56..291F. doi:10.1126/science.56.1446.291. PMID 17842026.