Here is a superb and unusually large specimen of a a Deanaspis goldfussi from the Letná Formation. | |||
Location: | Letna, Beroun, Barrandian area, Czech Republic | ||
| Size trilobite: | about 16 mm long | ||
| Age: | Middle Ordovician, Llandeilo, Letná Formation (About 464 mill. Years old) | ||