A fine, isolated, solitary corallum showing the upper surface with many fine septa in strong relief extending from the periphery almost to the centre and some 7 mm vertically downwards round the outer edge. Below the septa the general shape is conical, some concentric ridges are visible and the lower surface shows where the coral had been broken off. From near Bath, Avon UK.
Size: 38 mm diameter by 16 mm
Size: 38 mm diameter by 16 mm