Arnioceras semicostatoides Spath.
'Goldstone 'is the name given to a very thin layer of Ammonite rich rock with a golden tinge. This is from the original find way back in 1982. It rarely comes up for sale. Beautifully preserved detail.
Jurassic, Upper Sinemurian, Obtusum Zone.
Black Ven, Charmouth / Lyme Regis, Dorset.
Specimen : 8 x 5 x 1.5 cm.
