Asteroceras margaritoides (Spath)
Fine 3D Ammonite on grey limestone. Half way around the outer whorl the shell is missing. The rough edges might indicate that this is an injury due to a bite from a predator.
Jurassic, Upper Sinemurian, Obtusum Zone.
Black Ven, Charmouth / Lyme Regis, Dorset
Ammonite : 2.5 cm diam.
