Radstockiceras is an extinct genus of lower Jurassic ammonite that lived from Oxynotum zone of upper Sinemurian to Raricostatum zone of lower Pliensbachian.

Shells of these animals were oxycone and involute with umbilicus that took maximum of 12% of diameter in the case of outer whorls.

Suture has been very complex, similar to Oxynoticeras, but culmination at umbilical margin has been missing.

[1] Genus has been named after town of Radstock, in Somerset.

[3] Fossils belonging to this genus are found in Europe, South America, North Africa and Turkey.