Foremost Formation

Foremost Formation
Stratigraphic range: Campanian, 78.5–77.5 Ma
Outcrops of the Foremost Formation (basal sandstone and MacKay coal zone) along the Milk River at Writing-On-Stone Provincial Park
TypeGeological formation
Unit ofBelly River Group (Judith River Group)
UnderliesOldman Formation
OverliesPakowki Formation
Thicknessup to 170 metres (560 ft)
Lithology
PrimarySandstone, siltstone, mudstone
OtherShale, coal
Location
Region Alberta
Country Canada
Type section
Named forForemost, Alberta[1]
Named byD.B. Dowling, 1915[2]

The Foremost Formation is a stratigraphic unit of Late Cretaceous (Campanian) age that underlies much of southern Alberta, Canada. It was named for outcrops in Chin Coulee near the town of Foremost[1] and is known primarily for its dinosaur remains and other fossils.[3]

  1. ^ a b Glass, D.J. (editor) 1997. Lexicon of Canadian Stratigraphy, vol. 4, Western Canada including eastern British Columbia, Alberta, Saskatchewan and southern Manitoba. Canadian Society of Petroleum Geologists, Calgary; 1423 p. on CD. ISBN 0-920230-23-7.
  2. ^ Dowling, D.B. 1915. Southern Alberta. Geological Survey of Canada, Summary Report 1914, Part L, p. 43-51.
  3. ^ Weishampel, David B; et al. (2004). "Dinosaur distribution (Late Cretaceous, North America)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press, pp. 574-588. ISBN 0-520-24209-2.