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Runningwater Formation

Coordinates: 42°24′N 103°00′W / 42.4°N 103.0°W / 42.4; -103.0
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Runningwater Formation
Stratigraphic range: Early Miocene (Hemingfordian)
~20.6–16.3 Ma
TypeFormation
Lithology
PrimarySandstone
OtherConglomerate
Location
Coordinates42°24′N 103°00′W / 42.4°N 103.0°W / 42.4; -103.0
Approximate paleocoordinates43°06′N 99°06′W / 43.1°N 99.1°W / 43.1; -99.1
RegionNebraska
Country United States
Runningwater Formation is located in the United States
Runningwater Formation
Runningwater Formation (the United States)
Runningwater Formation is located in Nebraska
Runningwater Formation
Runningwater Formation (Nebraska)

The Runningwater Formation is a geologic formation in Nebraska. It preserves fossils dating back to the Hemingfordian of the Early Miocene of the Neogene period. The sandstones and conglomerates of the formation were deposited in a fluvial environment. The formation has provided many fossil mammals.

Fossil content

Among the following fossils have been found in the formation:[1]

Mammals
Reptiles

See also

References

  1. ^ Runningwater Formation at Fossilworks.org
  2. ^ Hunt & Yatkola, 2020

Bibliography

  • Hunt Jr, Robert M., and Daniel A. Yatkola. 2020. A new species of the amphicyonid carnivore Cynelos Jourdan, 1862 from the early Miocene of North America. Geodiversitas 42(5). 57–67. . doi:10.5252/geodiversitas2020v42a5