Belly River Group

Belly River Formation
Stratigraphic range: Santonian to Campanian PreꞒ Ꞓ O S D C P T J K Pg N
Belly River beds exposed along the Oldman River
Type	Group
Underlies	Bearpaw Formation
Overlies	Wapiabi Formation
Thickness	up to 1,300 metres (4,270 ft)[1]
Lithology
Primary	Sandstone, Shale
Other	Conglomerate, Coal, Bentonite
Location
Coordinates	49°37′54″N 112°52′31″W / 49.63161°N 112.87537°W / 49.63161; -112.87537 (Belly River Formation)
Region	Alberta
Country	Canada
Type section
Named for	Belly River
Named by	George Mercer Dawson, 1883

The Belly River Group is a stratigraphical unit of Late Cretaceous age in the Western Canadian Sedimentary Basin.

It takes the name from the Belly River, a tributary of the Oldman River in southern Alberta, and was first described in outcrop on the banks of the Oldman River (at the time considered part of the Belly River) and Bow River by George Mercer Dawson in 1883.^[2]