This is a trilobite of the species Ogyginus corndensis with positive and negative side from Gilwern Hill in Wales. | |||
Location: | Gilwern Hill, Builth Wells, Powys, Wales | ||
Size: | about 28 mm long | ||
Age: | Ordovizian, Llanvirn (Darriwilian) (About . 470 Mill. Years) |