Chickasha Formation

Geologic formation in Oklahoma, United States

Chickasha Formation
Stratigraphic range: Roadian PreꞒ Ꞓ O S D C P T J K Pg N
Type	Formation
Location
Region	Oklahoma
Country	United States
Type section
Named for	Chickasha, Grady County, Oklahoma
Named by	Charles Newton Gould, 1924^[1]

The Chickasha Formation is a geologic formation in Oklahoma. It preserves fossils dating back to the Roadian stage of the Middle Permian.^[2] These include, among others, the dissorophoid temnospondyl Nooxobeia gracilis,^[3] the lepospondyl Diplocaulus parvus (Amphibia: Nectridea),^[4] and the captorhinid Rothianiscus robusta, initially called Rothia robusta by Olson.^[5]

References

^ Gould, Charles N. (1924). "A new classification of the Permian redbeds of southwestern Oklahoma". American Association of Petroleum Geologists Bulletin. 8 (3): 322–341.
^ Laurin, Michel; Hook, Robert W. (2022). "The age of North America's youngest Paleozoic continental vertebrates: a review of data from the Middle Permian Pease River (Texas) and El Reno (Oklahoma) Groups". BSGF - Earth Sciences Bulletin. 193: 10. doi:10.1051/bsgf/2022007. ISSN 1777-5817.
^ Gee, Bryan M.; Scott, Diane; Reisz, Robert R. (October 2018). "Reappraisal of the Permian dissorophid Fayella chickashaensis". Canadian Journal of Earth Sciences. 55 (10): 1103–1114. doi:10.1139/cjes-2018-0053.
^ Olson, Everett C. (1972). "Diplocaulus parvus n. sp. (Amphibia: Nectridea) from the Chickasha Formation (Permian: Guadalupian) of Oklahoma". Journal of Paleontology. 46 (5): 656–659. ISSN 0022-3360.
^ Olson, E. C. (1965). "New Permian Vertebrates from the Chickasha Formation in Oklahoma". New Permian Vertebrates from the Chickasha Formation in Oklahoma. 70: 1–70.