See text Lyelliceras is a genus of ammonites belonging to the family Lyelliceratidae.

They lived in the Cretaceous period, Albian stage (109.0 to 99.7 Ma).

Shells of Lyelliceras species can reach a diameter of about 50 millimetres (2.0 in).

The section of the whorls is slightly compressed or circular, with straight radial ribs.

[3][4] The following species have been recognised:[1] Fossils of species within this genus have been found in the Cretaceous sediments of Colombia (Hiló Formation, Tolima), France, Madagascar, Mexico, Peru, South Africa, United Kingdom, United States and Venezuela.