The ventral surface of a large complete head (24 mm x 21 mm) showing all the individual plates and the characteristic ornamentation of the cuesta-like ribs with both oral spines attached. The 15 mm long spines are parallel to each other and are at an angle of 45 degrees to the head axis. From Dudley, West Midlands.
Size: 65 mm by 40 mm
Size: 65 mm by 40 mm