| Age | Cambrian |
|---|---|
| Period | Cambrian |
| Namedfor | Orr Ridge |
| Namedby | Charles D. Walcott[1] |
| Year ts | 1910[1] |
| Region | Utah |
| Country | United States |
| Subunits | Big Horse Limestone Member |
| Thickness | 1,825 feet[1] |
| Extent | House Range |
The Orr Formation is a geologic formation in Utah. It preserves fossils dating back to the Cambrian period.[1]
See also
References
- ^ Walcott, Charles D. (1910). "Nomenclature of some cambrian cordilleran formations". Smithsonian Miscellaneous Collections. 53 (1): 1-12.
- ((Various Contributors to the Paleobiology Database)). "Fossilworks: Gateway to the Paleobiology Database". Archived from the original on 25 March 2022. Retrieved 17 December 2021.