Good example with twin lobes. Coxal impressions, pleural marks & both genal spine marks. Wielska Wisniowka Quarry Holy Cross Mnts. Poland. The same speciman as TRF 7.2 but on a larger block showing many other trace fossils.
Size: 40*30mm on a block 125mm x 50mm
Size: 40*30mm on a block 125mm x 50mm