Arnioceras miserable (Quenstedt 1858).
'Goldstone' is the name given to one particular layer on Black Ven where the fossils can be preserved in beautiful pyrite. This piece was found in the early 1990's. You rarely see it come up for sale these days. Shows 6 beautifully preserved juvenile Arnioceras.
Jurassic, Upper Sinemurian, Obtusum Zone.
Black Ven, Charmouth / Lyme Regis, Dorset.
Specimen : 7 x 5.2 cm.
