Half of CCO 2.0, which is a superb complete, isolated, discus shaped, massive, cerioid compound corallum. This part of the upper surface shows about 40 sharply-defined polygonal calices, each with a raised columella in the centre of a small pit, surrounded by many septa in excellent relief. From Failand, near Bristol.
Size: 86mm dia, semi circular
Size: 86mm dia, semi circular