| This trilobite head of Dalmanitina socialis offers a wonderful colour play along with some exquisite details. Especially the one eye lets see the single lenses of the compound eye very well. | |||
| Location: | Beroun, Barrandian area, Czech Republic | ||
| Size trilobite: | about 47 mm wide | ||
| Age: | Middle Ordovician, Llandeilo, Letná Formation (About 464 mill. Years old) | ||