Rudists on the pavement of an underground station of Bucharest

The Politehnica underground station of Bucharest subway hides a stunning collection of rudist bivalves on its pavement that ignored every day by most passengers. The pavement of this underground station has been paved with slabs of a red limestone that are very rich in fossils, particularly in bivalves of the rudist group. 
These urban fossils are described in the website Tourist in Romania, where you can find other interesting facts about Romania. These are the links to the description of these fossils and the original post at Tourist in Romania.