A beautiful Promicroceras sp. cluster preserved in a piece of septarian limestone from the Stellare Bed at Charmouth, Dorset. Naturally intersecting calcite veins produce individual cells, each of which are full of well-preserved ammonites.
Age:Lower Jurassic, approximately 195 million years old.
Location:Charmouth, Dorset, UK.
Size of block:Approximately 19.5 cm x 15.5 cm at largest point.
