Orthosphinctes

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

Orthosphinctes
Temporal range: Kimmeridgian[1]
Orthosphinctes sp., from Montejunto (Portugal), at the Museu Nacional de História Natural, Lisboa
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Ammonoidea
Order:
Ammonitida
Family:
Ataxioceratidae
Genus:
Orthosphinctes
Species [2]
  • O. alternans

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]

References
Notes
  1. Sepkoski, Jack (2002). "Sepkoski's Online Genus Database". Archived from the original on 2016-02-25. Retrieved 2014-05-28.
  2. "Paleobiology Database - Pectinatites". Retrieved 2014-05-28.


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