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The '''White River Formation''' is a [[Formation (geology)|geologic formation]] of the [[Paleogene]] [[Period (geology)|Period]], in the northern [[Great Plains]] and central [[Rocky Mountains]], within the [[United States]].
The '''White River Formation''' is a [[Formation (geology)|geologic formation]] of the [[Paleogene]] [[Period (geology)|Period]], in the northern [[Great Plains]] and central [[Rocky Mountains]], within the [[United States]].


It has been found in northeastern [[Colorado]], [[Dawes County, Nebraska|Dawes County]] in western [[Nebraska]], [[South Dakota Badlands|Badlands]] of western [[South Dakota]], and [[Douglas, Wyoming|Douglas]] area of southeastern [[Wyoming]]. <ref name=donaldprothero/>
It has been found in northeastern [[Colorado]], [[Dawes County, Nebraska|Dawes County]] in western [[Nebraska]], [[South Dakota Badlands|Badlands]] of western [[South Dakota]], and [[Douglas, Wyoming|Douglas]] area of southeastern [[Wyoming]].<ref name=donaldprothero/>


==Fossil record==
==Fossil record==
{{For|the formation's prehistoric animals|Category: White River Fauna}}
{{For|the formation's prehistoric animals|Category: White River Fauna}}
The geologic formation preserves [[fossils]] dating back to the [[Eocene]] and [[Oligocene]] [[Epoch (geology)|Epoch]]s of the Paleogene Period, during the [[Cenozoic Era]]. <ref>{{cite web|title= Fossilworks: Gateway to the Paleobiology Database|author= Various Contributors to the Paleobiology Database|url= http://www.fossilworks.org/|accessdate= 8 July 2014}}</ref> It contains the most complete [[Late Eocene]]−[[Priabonian]] and [[Early Oligocene]]−[[Rupelian]] vertebrate record in North America. <ref name=donaldprothero/> <ref>[http://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=1208&context=tnas DigitalCommons@University of Nebraska - Lincoln: "Preliminary Biostratigraphy of the White River Group (Chadron and Brule Formations) in the Vicinity of Chadron, Nebraska"], by Eric Paul Gustafson, January 1986.</ref>
The geologic formation preserves [[fossils]] dating back to the [[Eocene]] and [[Oligocene]] [[Epoch (geology)|Epoch]]s of the Paleogene Period, during the [[Cenozoic Era]].<ref>{{cite web|title= Fossilworks: Gateway to the Paleobiology Database|author= Various Contributors to the Paleobiology Database|url= http://www.fossilworks.org/|accessdate= 8 July 2014}}</ref> It contains the most complete [[Late Eocene]]−[[Priabonian]] and [[Early Oligocene]]−[[Rupelian]] vertebrate record in North America.<ref name=donaldprothero/><ref>[http://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=1208&context=tnas DigitalCommons@University of Nebraska - Lincoln: "Preliminary Biostratigraphy of the White River Group (Chadron and Brule Formations) in the Vicinity of Chadron, Nebraska"], by Eric Paul Gustafson, January 1986.</ref>


==See also==
==See also==
{{Portal|Geology|Paleontology|Paleogene|South Dakota}}
{{Portal|Geology|Paleontology|Paleogene}}
* {{C|White River Fauna|White River Formation prehistoric fauna}}
* {{C|White River Fauna|White River Formation prehistoric fauna}}
* [[Chadronian]] — [[Priabonian]], Rupelian
* [[Chadronian]] — [[Priabonian]], Rupelian
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{{Reflist|33em}}
{{Reflist|33em}}


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[[Category:White River Fauna| 01]]
[[Category:White River Fauna| 01]]
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[[Category:Paleontology in Wyoming]]
[[Category:Paleontology in Wyoming]]


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{{SouthDakota-geologic-formation-stub}}
{{SouthDakota-geologic-formation-stub}}

Revision as of 02:39, 10 July 2019

White River Formation
Stratigraphic range: Eocene-Oligocene
TypeFormation
Sub-unitsBrule Formation,
Chadron Formation [1]
OverliesPierre Shale
Thickness230–300 metres (750–980 ft) [2]
Lithology
PrimaryTuffaceous claystone, conglomerate[3]
Location
RegionColorado,
Nebraska,
South Dakota,
Wyoming
CountryUnited States
Type section
Named forWhite River
(Missouri River tributary)

The White River Formation is a geologic formation of the Paleogene Period, in the northern Great Plains and central Rocky Mountains, within the United States.

It has been found in northeastern Colorado, Dawes County in western Nebraska, Badlands of western South Dakota, and Douglas area of southeastern Wyoming.[1]

Fossil record

For the formation's prehistoric animals, see Category: White River Fauna.

The geologic formation preserves fossils dating back to the Eocene and Oligocene Epochs of the Paleogene Period, during the Cenozoic Era.[4] It contains the most complete Late Eocene−Priabonian and Early Oligocene−Rupelian vertebrate record in North America.[1][5]

See also

References

  1. ^ a b c DonaldProthero.com: "Eocene-Oligocene climatic change in North America: the White River Formation"
  2. ^ DouglasFossils.com: Paleontology and Geology of The White River Formation
  3. ^ USGS: White River Formation
  4. ^ Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 8 July 2014. {{cite web}}: |author= has generic name (help)
  5. ^ DigitalCommons@University of Nebraska - Lincoln: "Preliminary Biostratigraphy of the White River Group (Chadron and Brule Formations) in the Vicinity of Chadron, Nebraska", by Eric Paul Gustafson, January 1986.


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