Here is a magnificent cephalon of Dalmanitina socialis from Ded Hil near Beroun. | |||
Location: | Ded Hill, Beroun, Barrandian area, Czech Republic | ||
Size trilobite: | about 37 mm wide | ||
Age: | Middle Ordovician, Llandeilo, Letná Formation (About 464 mill. Years old) |