Johns Valley Formation
| Johns Valley Formation | |
|---|---|
| Stratigraphic range: Carboniferous: Pennsylvanian | |
| Type | Formation |
| Underlies | Atoka Formation |
| Overlies | Jackfork Sandstone |
| Lithology | |
| Primary | Shale |
| Other | Sandstone |
| Location | |
| Region | Arkansas and Oklahoma |
| Country | United States |
| Type section | |
| Named for | Johns Valley, Pushmataha County, Oklahoma [1] |
| Named by | Edward Oscar Ulrich, 1927 |
The Johns Valley Formation is a geologic formation in Arkansas and Oklahoma.[2] It preserves fossils dating back to the Carboniferous period.
Paleofauna
Bryozoans
Cephalopods
|
|
|
|
See also
- List of fossiliferous stratigraphic units in Arkansas
- List of fossiliferous stratigraphic units in Oklahoma
- Paleontology in Arkansas
- Paleontology in Oklahoma
References
- ^ Ulrich, E.O. (1927). "Fossiliferous boulders in the Ouachita "Caney" shale and the age of the shale containing them". Oklahoma Geological Survey Bulletin. 45: 6, 21–23, 30, 36–37.
- ^ "Stratigraphic Summary of the Arkansas River Valley and Ouachita Mountains". Arkansas Geological Survey. Archived from the original on 2018-05-29. Retrieved 2017-12-15.
- ^ 3.00 3.01 3.02 3.03 3.04 3.05 3.06 3.07 3.08 3.09 3.10 Horowitz, Alan S. (1977). "Late Mississippian and Early Pennsylvanian bryozoan faunas of Arkansas and Oklahoma: a review" (PDF). Oklahoma Geological Survey Guidebook. 18: 101–105. Retrieved 3 February 2018.
- ^ 4.00 4.01 4.02 4.03 4.04 4.05 4.06 4.07 4.08 4.09 4.10 4.11 4.12 4.13 4.14 4.15 4.16 4.17 4.18 4.19 4.20 4.21 4.22 4.23 4.24 Gordon, Jr., Mackenzie (1964). "Carboniferous Cephalopods of Arkansas". U.S. Geological Survey Professional Paper. 460: 51–53.
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.
 | This article about a specific stratigraphic formation in the United States is a stub. You can help Wikipedia by expanding it. |
| This article about a specific stratigraphic formation in Oklahoma is a stub. You can help Wikipedia by expanding it. |