| Ada Formation | |
|---|---|
| Stratigraphic range: Late Pennsylvanian | |
| Type | Formation |
| Location | |
| Region | Oklahoma |
| Country | United States |
| Type section | |
| Named for | Ada, Pontotoc Co, OK |
The Ada Formation is a geologic formation in Oklahoma, within and to west of Ada. It consist mainly of shale with numerous limestone layers which get thinner and eventually disappear to the south, where they are replaced by fine-grained sandstone. Fossils are rare. Disarticulated remains of Eryops, Diasparactus, and Ophiacodon from the Ada Formation represent the first finds of these genera in Oklahoma.
See also
References
- Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.
- USGS. "Ada Group or Ada Formation". Mineral Resources On-Line Spatial Data. Retrieved 2016-02-18.
- Kissel, Richard A.; Lehman, Thomas M. (2002). "Upper Pennsylvanian Tetrapods from the Ada Formation of Seminole County, Oklahoma". Journal of Paleontology. 76 (3): 529–545. JSTOR 1307163.
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