Amaltheus margaritatus de Montford.
Calcitic 3D Ammonite. Both positive and negative halves. There is also a Gastropod which could be developed out. The Ammonite shows beautiful sutures. Nice example of this zonal index Ammonite.
Jurassic, Middle Lias, Upper Pliensbachian, Margaritatus Zone. Margaritatus Stone.
Down Cliff, Seatown, Dorset.
Ammonite : 3.2 cm. diam.
