Bayan Mandahu Formation

"Wulansuhai Formation" redirects here. For the Turonian formation, see Ulansuhai Formation.
Bayan Mandahu Formation
Stratigraphic range: Campanian,
TypeGeological formation
Unit ofGobi Desert
Lithology
PrimarySandstone
Location
Coordinates41°45′N 106°45′E / 41.75°N 106.75°E / 41.75; 106.75
RegionInner Mongolia
CountryChina
Type section
Named forBayan Mandahu, Urad Rear Banner, Inner Mongolia
Bayan Mandahu Formation (China)
Bayan Mandahu Formation (Inner Mongolia)

The Bayan Mandahu Formation (also known as Wulansuhai Formation or Wuliangsuhai Formation) is a geological unit of "redbeds" located near the village of Bayan Mandahu in Inner Mongolia, China, in the Gobi Desert. It dates from the late Cretaceous Period. Laid down in the Campanian, it is dated somewhat uncertainly to between 75 and 71 mya (million years ago).

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