Runningwater Formation | |
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Stratigraphic range: Early Miocene (Hemingfordian) ~ | |
Type | Formation |
Lithology | |
Primary | Sandstone |
Other | Conglomerate |
Location | |
Coordinates | 42°24′N 103°00′W / 42.4°N 103.0°W |
Approximate paleocoordinates | 43°06′N 99°06′W / 43.1°N 99.1°W |
Region | Nebraska |
Country | ![]() |
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.
Among the following fossils have been found in the formation:[1]