Chalk Butte Formation
The Chalk Butte Formation is a geologic formation in Oregon. It preserves fossils dating back to the Neogene period.[1][2][3]
| Chalk Butte Formation | |
|---|---|
| Stratigraphic range: Tortonian-Zanclean (Hemphillian) ~ | |
| Type | Formation |
| Location | |
| Coordinates | 43.6°N 117.5°W |
| Approximate paleocoordinates | 44.3°N 114.6°W |
| Region | Malheur County, Oregon |
| Country |  United States |
| Type section | |
| Named for | Chalk Butte |
  Chalk Butte Formation (the United States)  Chalk Butte Formation (Oregon) | |
Fossil content
The following fossils have been reported from the formation:[1][4]
- Antecalomys valensis
- Basirepomys pliocenicus
- Copemys cf. esmeraldensis
- Cupidinimus magnus
- Diprionomys parvus
- Dipoides vallicula
- Eucyon davisi
- Goniodontomys disjunctus
- Hypolagus vetus
- Peromyscus antiquus
- Pliohippus spectans
- Plionictis oregonensis
- Scapanus proceridens
- Dipoides sp.
- Spermophilus sp.
- Camelidae indet.
- Perognathinae indet.
- Soricidae indet.
- ?Vespertilionidae indet.
References
- Chalk Butte Formation at Fossilworks.org
- Chalk Butte Formation at USGS
- Chalk Butte Formation publications at USGS
- Shotwell, 1970
Bibliography
- . 1970. Pliocene mammals of southeast Oregon and adjacent Idaho. Bulletin of the Museum of Natural History, University of Oregon 17. 1–103.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.