Perisphinctes

{{Short description|Extinct genus of ammonite}}

{{Automatic taxobox

| fossil_range = {{fossil range| Callovian|Tithonian

|ref={{cite web |title=A compendium of fossil marine animal genera (Cephalopoda entry) | journal=Bulletins of American Paleontology |volume=363 |pages=1–560 | year=2002 | url=http://strata.geology.wisc.edu/jack/showgenera.php?taxon=231&rank=class |accessdate=2017-10-18 |url-status=dead | archiveurl=https://web.archive.org/web/20160225225905/http://strata.geology.wisc.edu/jack/showgenera.php?taxon=231&rank=class | archivedate=2016-02-25 }}}}

| image = Perisphinctes ammonite.jpg

| image_caption = Exhibit from the Museum of Natural History in Berlin

| taxon = Perisphinctes

| authority = Waagen, 1869

| subdivision_ranks = Species

| subdivision_ref = {{cite web | title= Paleobiology Database - Perisphinctes |authorlink =| year = | url = https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=15382 | access-date = 17 December 2021 }}

| subdivision = * P. abadiensis

• P. arussiorum

• P. birmensdorfensis
• P. choffati

• P. gallarum

• P. hillebrandti
• P. jubailensis
• P. parandieri
• P. picteti
• P. roubyanus
• P. stenocyclus
• P. variocostatus

| type_species = Ammonites variocostatus

| type_species_authority = Buckland, 1836

}}

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.[http://pubs.usgs.gov/gip/geotime/fossils.html Index Fossils], United States Geological Service, USA. The species P. boweni was named after the English chemist and geologist E. J. Bowen (1898–1980).{{cite journal |title=Edmund John Bowen 29 April 1898 – 19 November 1980 Elected F.R.S. 1935 | author=Bell, R. P. |authorlink=Ronnie Bell (chemist)| journal=Biographical Memoirs of Fellows of the Royal Society |date=November 1981 |volume=27 | pages=83–101 | doi=10.1098/rsbm.1981.0004|jstor = 769866|doi-access=free }}