Lytoceras cornucopia is an ammonite species belonging to the family Lytoceratidae.

These cephalopods were fast-moving nektonic carnivores.

They lived in the Jurassic period.

Shells of Lytoceras cornucopia can reach an average diameter of about 140 millimetres (5.5 in).

[1] Fossils of species within this genus have been found in the Jurassic rocks of France, Hungary, Italy, Luxembourg and United Kingdom.