Upper Gilwern Quarry, Howey, Llandrindod Wells, Powys, Wales, UK
Ogyginus corndensis (485.4-443.8 million years ago) trilobite fossil. From the Lower Llanvirn Series, Upper Gilwern Quarry (on Gilwern Hill), near Howey, Llandrindod Wells, Powys, Wales. The trilobite itself measures 47x34mm at its widest points.
A genus of asaphid trilobites that lived during the Ordovician period, Ogyginus is commonly found ...