Promicroceras planicosta Sowerby
Base cut free standing specimen of the famous 'Ammonite Marble' from Marston Magna. The upper surface shows a cascade of beautifully preserved 3D Ammonites tumbling down . Very attractive
Jurassic, Upper Sinemurian, Obtusum Zone, 'Ammonite Marble'..
Marston Magna, Somerset.
Specimen : 6.8 x 6 x 5.5 cm.
