Amaltheus (Amaltheus) gibbosus Schlotheim 1820.
Fine 3D calcitic Ammonite on matrix. Developed to the protoconch. From a classic old locality.
Jurassic, Upper Pliensbachian, Spinatum Zone.
Oxenton Hill, north of Cheltenham, Gloucestershire.
Ammonite : 5 cm diam.
