Ada Formation

Last updated
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. [1] 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. [2] Disarticulated remains of Eryops , Diasparactus , and Ophiacodon from the Ada Formation represent the first finds of these genera in Oklahoma. [3]

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.


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