| Nicely Formation | |
|---|---|
| Stratigraphic range: late Pliensbachian ~186–183 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓ | |
| Type | Formation |
| Lithology | |
| Primary | Mudstone, limestone |
| Other | Shale, siltstone |
| Location | |
| Coordinates | 44°06′N 119°24′W / 44.1°N 119.4°W / 44.1; -119.4 |
| Approximate paleocoordinates | 28°24′N 56°06′W / 28.4°N 56.1°W / 28.4; -56.1 |
| Region | Crook, Grant & Harney Counties, Oregon |
| Country |  United States |
| Extent | Snake River Basin |
  Nicely Formation (the United States)Show map of the United States Nicely Formation (Oregon)Show map of Oregon | |
The Nicely Formation is a geologic formation in the Crook, Grant, and Harney Counties in Oregon. It preserves radiolaria and ichthyosaur fossils dating back to the Pliensbachian stage of the Early Jurassic period.
Fossil content
Among others, the following fossils have been reported from the formation:
See also
References
- ^ Nicely Formation at Fossilworks.org
- Orr & Katsura, 1985
Bibliography
- Orr, W. N.; Katsura, K. T. (1985), "Oregon's oldest vertebrates ", Oregon Geology, 47: 75–77
- K. Y. Yeh. 1987. Taxonomic Studies of Lower Jurassic Radiolaria from East-Central Oregon. National Museum of Natural Science Special Publications 2:1-169
- E. A. Pessagno Jr. and P.A. Whalen. 1982. Lower and Middle Jurassic Radiolaria (multicyrtid Nassellariina) from California, east-central Oregon and the Queen Charlotte Islands, B.C. Micropaleontology 28(2):111-169
- Jurassic geology of Oregon
- Jurassic System of North America
- Pliensbachian Stage
- Mudstone formations
- Limestone formations of the United States
- Shale formations of the United States
- Siltstone formations
- Deep marine deposits
- Paleontology in Oregon
- Landforms of Crook County, Oregon
- Landforms of Grant County, Oregon
- Landforms of Harney County, Oregon