Oxycerites

Oxycerites; Temporal range: Bajocian–Callovian PreꞒ Ꞓ O S D C P T J K Pg N
	Specimen from Poland
Scientific classification
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Cephalopoda
Subclass:	†Ammonoidea
Order:	†Ammonitida
Family:	†Oppeliidae
Genus:	†Oxycerites
Species
	see text

Oxycerites is an extinct ammonoid cephalopod belonging to the haploceratoid family, Oppeliidae, that lived during the Middle Jurassic.^[1]

Shells of Oxycerites are involute, compressed and generally smooth with a sharply rounded venter on the outer rim, deeply impressed dorsum on the inner rim, and a small umbilicus. The living chamber takes up slightly more than half a whorl. Oxycerites grew to a diameter of at least 17.5 cm, about 7 inches.

Oppelia and Oecotraustes are similar and closely related forms. Oppelia is smoother, Oecotraustes more strongly ribbed

Distribution[]

Jurassic of Argentina, France, Germany, Iran, Madagascar, Russia, Saudi Arabia and the United Kingdom^[2]

References[]

^ ^a ^b 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.
^ "Paleobiology Database - Oxycerites". Retrieved 2017-10-20.

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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.

[fossilworks-2] "Paleobiology Database - Oxycerites". Retrieved 2017-10-20.

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