A very fine external mould, complete apart from a small part of the cephalon and the thorax. One genal spine (100 mm) and one pygidial spine (53 mm) show particularly well. From St Davids Dyfed, Wales.
Size: 205 mm by 100 mm on block 215 mm by 120 mm
Size: 205 mm by 100 mm on block 215 mm by 120 mm