Eulytoceras is an extinct genus of ammonoid cephalopods belonging to the family Lytoceratidae.

These fast-moving nektonic carnivores [1] lived in the Cretaceous period, from Hauterivian age to Barremian age.

[2] [1] Shells of Eulytoceras species reach a diameter of about 72–140 millimetres (2.8–5.5 in).

[3][4] Fossils of species within this genus have been found in the Cretaceous rocks of Antarctica, Austria, Canada, Italy, Madagascar, South Africa and Spain.

This Ammonitida-related article is a stub.