Hereis a large specimen of the quite rare Agnostid trilobite Tomagnostus fissus from Pembrokeshire. | |||
Location: | Nine Wells, Pembrokeshire, Wales, UK | ||
| Size: | about 12 mm long | ||
| Age: | Middle Cambrian, St. Davids Series, Plutonites hicksii Biozone (about 500 Mill. Years) | ||