Willow Creek Formation

Willow Creek Formation
Stratigraphic range: Late Cretaceous to Paleocene
Type Geological formation
Underlies Porcupine Hills Formation
Overlies St. Mary River Formation
Lithology
Primary Shale, Sandstone
Location
Named for Willow Creek
Named by G.M. Dawson, 1883[1]
Region North America
Country  Canada

The Willow Creek Formation is a geological formation in Alberta, Canada whose strata date back to the Late Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation.[2]

It was first described by George Mercer Dawson in 1883 along the Willow Creek, a tributary of the Oldman River. Williams and Dyer defined the type section in 1930 at the mouth of Willow Creek, east of Fort Macleod.[3]

Contents

Lithology

The Willow Creek Formation is composed of colored shale and light grey sandstones. [4]

Vertebrate paleofauna

See also

References

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  1. ^ Dawson, G.M., 1883. Preliminary report on the geology of the Bow and Belly River region, Northwest Territory, with special reference to the coal deposits. Geological Survey of Canada, Report of Progress for 1880-81-82, Part B.
  2. ^ 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.
  3. ^ Williams, M.Y. and Dyer, W.S., 1930. Geology of southern Alberta and southwestern Saskatchewan; Geological Survey of Canada, Memoir 163.
  4. ^ Lexicon of Canadian Geologic Units. "Willow Creek Formation". http://cgkn1.cgkn.net/weblex/weblex_litho_detail_e.pl?00053:016534. Retrieved 2010-01-01.