Bettonolithus chamberlaini (Elles)
Perfect complete example of this blind Trilobite. Both positive and negative. Shows the pits around the head to perfection.
Ordovician, Lower Llanvirn Series, Arctus Zone
Upper Gilwern Hill Quarry, Powys, Wales
Matrix 3.5 x 3.5 cm
Trilobite 0.8 cm
