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.
Jurassic of Algeria, France, India, Iran, Italy, Madagascar, Spain, Yemen.