|Here is a beautiful develop Rokycany nodule with servile trilobites of the species Placoparia barrandei. The entire concretion is full with trilobites, this piece is truly a pictebook example of a classical Rokycany concretion. New finds are today not anymore possible because the strict collecting restriction on the fields around Rokycany, today is the collecting forbidden.|
In the past where the lose nodules collected in the springtime after the ploughing of the fields.
Only one of about 100 nodules contains a remarkable fossil like this piece.
The Matrix measures about 50 x 42 mm.
|Rokycany, Barrandian area, Czech Republic|
|Size trilobite:||largest, about 15 mm long|
|Age:||Middle Ordovician, Llandeilo, Šárka Formation (About 464 mill. Years old)|