Geologic formation in the Great Plains of North America
Fox Hills Formation
Stratigraphic range: Late Cretaceous
A ridge capped by a sandstone bed of the Fox Hills Formation west of Limon, Colorado
Type
Geological formation
Unit of
Montana Group (MT, ND)
Sub-units
Fairpoint member (SD), Trail City member (ND, SD), Timber Lake (ND, SD), Lincoln member (CO), etc.
Underlies
Lance (WY)/Hell Creek (MT)[1] Laramie Formation (CO)
Overlies
Pierre (USA)/Bearpaw (CAN)[1] Lewis Shale (WY, MT)[1]
Thickness
75-225 feet
Lithology
Primary
Sandstone
Other
Shale
Location
Region
Alberta, Colorado, Montana, North Dakota, South Dakota and Wyoming
Country
United States/Canada
Type section
Named for
Fox Hills between Cheyenne and Moreau Rivers, South Dakota
Named by
Meek and Hayden[1]
Year defined
1862[1]
The Fox Hills Formation is a Cretaceous geologic formation in the northwestern Great Plains of North America. It is present from Alberta on the north to Colorado in the south.
Fossil remains of dinosaurs, including tyrannosaurs, as well as large marine reptiles, such as mosasaurs, have been recovered from the formation.[2]
^ abcde"Geologic Unit: Fox Hills". National Geologic Database. Geolex — Significant Publications. United States Geological Survey. Retrieved 2017-02-13.
^Getman, Myron RC (1994). "Occurrences of Mosasaur and other reptilian fossil remains from the Fox Hills Formation (Maastrichtian: late Cretaceous) of North Dakota" (Document). St. Lawrence University Dept. of Geology theses.
and 30 Related for: Fox Hills Formation information
The FoxHillsFormation is a Cretaceous geologic formation in the northwestern Great Plains of North America. It is present from Alberta on the north to...
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The formation stretches over portions of Montana, North Dakota, South Dakota, and Wyoming. In Montana, the Hell Creek Formation overlies the FoxHills Formation...
extinct genus of xiphosuran. It is known from the Late Cretaceous FoxHillsFormation of North America, and it lived in freshwater environments. It is...
Lea Park Formation in central Alberta. The Pierre is overlain by marginal marine deposits of the FoxHillsFormation. Most of the formation was deposited...
Creek Nature Center, Rooney Road near Dinosaur Ridge, Valmont Dike FoxHillsFormation was formed during the Paleogene / Cretaceous periods. It is a marginal...
osteichthyan paleofaunas of the Cretaceous (late Maastrichtian) FoxHillsFormation of North Dakota, USA: paleoecology, paleogeography, and extinction...
the Frenchman Formation of Saskatchewan, the Lance Formation of Wyoming, the FoxHillsFormation of Colorado, the Hell Creek Formation of Montana, and...
delta previously fed the deepwater Lewis Shale and shallow marine FoxHillsFormation. The Ferris followed behind as a system of lagoons, bays, and delta...
roll-front uranium deposits in the Upper Cretaceous Laramie Formation and FoxHillsFormation in Weld County. They all occur along the southern margin of...
County, Arkansas, the Severn Formation of Prince George's County, Maryland, and Fairpoint Member of the FoxHillsFormation in Meade County, South Dakota...
Occurrences of Mosasaur and other reptilian fossil remains from the FoxHillsFormation (Maastrichtian: late Cretaceous) of North Dakota (Geology Honors...
Montana; the FoxHillsFormation and Lance Formation in Montana; and the Lennup Formation and Muteetse Formation in Wyoming. The formations of the Edmonton...
in the United States. An aquifer is a geologic formation, a group of formations, or a part of a formation that contains sufficient saturated permeable material...
the Rhine Plain, two major hill ranges have formed that run the length of the basin. To the west, in France, these hills are known as the Vosges mountain...
the male fox has a baculum, or penile bone. The testes of red foxes are smaller than those of Arctic foxes. Sperm formation in red foxes begins in August–September...
is part of the High Plains Aquifer System, and resides in the Ogallala Formation, which is the principal geologic unit underlying 80% of the High Plains...
on 6 June 2008. Berdan, Frances F.; Blanton, Richard E.; Boone, Elizabeth Hill; Hodge, Mary G.; Smith, Michael E.; Umberger, Emily (1996). Aztec Imperial...
Great Western Plateau to the west. Most recharge water enters the rock formations from relatively high ground near the eastern edge of the basin (in Queensland...
sunbaked, horizontal surfaces of very loose, fragile sandstones of the FoxHillsFormation. According to the authors, Candelariella clarkii merits ranking under...
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underlying or overlying an aquifer, the pressure of which could lead to the formation of a confined aquifer. The classification of aquifers is as follows: Saturated...
Mensch); Scaphitid ammonites of the Upper Cretaceous (Maastrichtian) FoxHillsFormation in South Dakota and Wyoming. Bulletin of the AMNH ; no. 215, 1993...
the St. Mary River Formation in southern Alberta; by the Eastend Formation in southern Saskatchewan; and by the FoxHillsFormation in Montana. To the...
other lichens in mixed saxicolous communities on sandstone in the FoxHillsFormation. The lichen is characterized by its thick white, chalky thallus,...
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