Perisphinctes

Extinct genus of ammonite

Perisphinctes is an extinct genus of ammonite cephalopod. They lived during the Middle to Late Jurassic epochs and serve as an index fossil for that time period.^[5] The species P. boweni was named after the English chemist and geologist E. J. Bowen (1898–1980).^[6]

Distribution

Cephalopods of species belonging to this genus have been found in the Jurassic of Antarctica, Argentina, Chile, Cuba, Egypt, Ethiopia, France, Germany, Hungary, India, Iran, Italy, Japan, Madagascar, Poland, Portugal, Russia, Saudi Arabia, Spain, Switzerland, the United Kingdom and Yemen.^[3]

Gallery

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  Perisphinctes virguloides
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  Perisphinctes choffati
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  Perisphinctes plicatilis
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  Perisphingtes oxfordien

References

• Paleontology portal

1. "A compendium of fossil marine animal genera (Cephalopoda entry)". Bulletins of American Paleontology. 2002. pp. 1–560. Archived from the original on 2016-02-25. Retrieved 2017-10-18.
2. Waagen, W. (1869). "Die Formenreihe des Ammonites subradatus". Geognostisch-Paläontologischen Beiträgen. 2 (2). München: R. Oldenbourg: 248. hdl:2027/nnc1.0030928605.
3. "Paleobiology Database - Perisphinctes". Retrieved 17 December 2021.
4. Hemming, Francis (1954). "Opinion 303: Designation, under the Plenary Powers, of type species in harmony with current usage for the nominal genera Kosmoceras, Perisphinctes and Harpoceras (class Cephalopoda, order Ammonoidea) established by Waagen in 1869". Opinions and Declarations Rendered by the International Commission on Zoological Nomenclature. 8 (20): 273–284.
5. Index Fossils, United States Geological Service, USA.
6. Bell, R. P. (November 1981). "Edmund John Bowen 29 April 1898 – 19 November 1980 Elected F.R.S. 1935". Biographical Memoirs of Fellows of the Royal Society. 27: 83–101. doi:10.1098/rsbm.1981.0004. JSTOR 769866.