Here is a unusual large example of the Trilobite Ectillaenus katzeri in a nice Rokycany nodule. The concretion is about 67 mm in diameter. | |||
Location: | Rokycany , Barrandian area, Czech Republic | ||
Size trilobite: | about 65 mm long | ||
Age: | Middle Ordovician, Llandeilo, Šárka Formation (About 464 mill. Years old) |