Perisphinctes

Perisphinctes; Temporal range:
	Exhibit from the Museum of Natural History in Berlin.
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Cephalopoda
Subclass:	†Ammonoidea
Order:	†Ammonitida
Family:	†Perisphinctidae
Subfamily:	†Perisphinctinae
Genus:	†Perisphinctes; Waagen, 1869
Type species
	Ammonites variocostatus; Buckland, 1836
Species
	P. abadiensis; P. arussiorum; P. birmensdorfensis; P. choffati; P. gallarum; 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 Middle to Late Jurassic epochs and serve as an index fossil for that time period. The species P. boweni was named after the English chemist and geologist E. J. Bowen (1898–1980).

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