Ada Formation

Ada Formation
Stratigraphic range: Late Pennsylvanian
TypeFormation
Location
RegionOklahoma
CountryUnited States
Type section
Named forAda, 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

  1. ↑ Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Archived from the original on 25 March 2022. Retrieved 17 December 2021.
  2. ↑ USGS. "Ada Group or Ada Formation". Mineral Resources On-Line Spatial Data. Retrieved 2016-02-18.
  3. ↑ 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.