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Orthosphinctes; Temporal range: Kimmeridgian PreꞒ Ꞓ O S D C P T J K Pg N
	Orthosphinctes sp., from Montejunto (Portugal), at the Museu Nacional de História Natural, Lisboa
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Cephalopoda
Subclass:	†Ammonoidea
Order:	†Ammonitida
Family:	†Ataxioceratidae
Genus:	†Orthosphinctes; Schindewolf, 1925
Species
	Orthosphinctes alternans;

Orthosphinctes is a genus of ammonites belonging to the order Ammonitida family Ataxioceratidae.

They lived in the late Jurassic period, in the Kimmeridgian age, which occurred 155.7-152.1 million years ago. These shelled ammonoids were nektonic, fast-moving and carnivore.

Fossils distribution

Jurassic of Algeria, France, India, Iran, Italy, Madagascar, Spain, Yemen.^[2]

Gallery

Orthosphinctes colubrinus, from Mount Lochen near Balingen, Germany
Orthosphinctes pseudoachilles, from Treuchtlingen, Germany

References

^ Sepkoski, Jack (2002). "Sepkoski's Online Genus Database". Archived from the original on 2016-02-25. Retrieved 2014-05-28.
^ ^a ^b "Paleobiology Database - Pectinatites". Retrieved 17 December 2021.

This Ammonitina-related article is a stub. You can help Wikipedia by expanding it.

[Sepkoski_Ceph-1] Sepkoski, Jack (2002). "Sepkoski's Online Genus Database". Archived from the original on 2016-02-25. Retrieved 2014-05-28.

[fossilworks-2] "Paleobiology Database - Pectinatites". Retrieved 17 December 2021.

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