| This is a trilobite of the species Otarion diffractum from the Kosov quarry in the Czech Republic. | |||
Location: | Kosov quarry near Beroun, Bohemia, Czech Republic | ||
| Size trilobite: | about 10 mm long | ||
| Age: | Silurian, Kopaninské Formation (about. 430 mill. y.o.) | ||