Perisphinctes

Perisphinctes; Temporal range: Callovian–Tithonian[1] PreЄ Є O S D C P T J K Pg N
	Exhibit from the Museum of Natural History in Berlin.
Conservation status
	Fossil
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Cephalopoda
Subclass:	Ammonoidea
Order:	Ammonitida
Family:	Perisphinctidae
Genus:	Perisphinctes; Waagen, 1869[2]
Type species
	Ammonites variocostatus[3]; Buckland, 1836
Species[4]
	P. abadiensis; P. arussiorum; P. birmensdorfensis; P. choffati; P. durangensis; P. gallarum; P. hetaerus; P. hillebrandti; P. jubailensis; P. parandieri; P. picteti; P. roubyanus; P. stenocyclus; P. variocostatus;

Perisphinctes is an extinct genus of ammonite cephalopod. They lived during the Late Jurassic Epoch, 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

Shells 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.^[4]

Gallery

Perisphinctes virguloides
Perisphinctes choffati
Perisphinctes plicatilis
Perisphingtes oxfordien

References

↑ Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Cephalopoda entry)". Bulletins of American Paleontology. 363: 1–560. Archived from the original on 2008-05-07. Retrieved 2017-10-18.
↑ Waagen, W. (1869). "Die Formenreihe des Ammonites subradatus". Geognostisch-Paläontologischen Beiträgen. München: R. Oldenbourg. 2 (2): 248. hdl:2027/nnc1.0030928605.
↑ 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.
1 2 "Paleobiology Database - Perisphinctes". Retrieved 2017-08-27.
↑ Index Fossils, United States Geological Service, USA.
↑ 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. The Royal Society. 27: 83. doi:10.1098/rsbm.1981.0004.

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[Sepkoski_Ceph-1] Sepkoski, Jack (2002). "A compendium of fossil marine animal genera (Cephalopoda entry)". Bulletins of American Paleontology. 363: 1–560. Archived from the original on 2008-05-07. Retrieved 2017-10-18.

[Waagen,_1869-2] Waagen, W. (1869). "Die Formenreihe des Ammonites subradatus". Geognostisch-Paläontologischen Beiträgen. München: R. Oldenbourg. 2 (2): 248. hdl:2027/nnc1.0030928605.

[Hemming,_1954-3] 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.

[fossilworks-4] 1 2 "Paleobiology Database - Perisphinctes". Retrieved 2017-08-27.

[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. The Royal Society. 27: 83. doi:10.1098/rsbm.1981.0004.