Lower Cenomanian trace fossils and transgressive deposits in the Cracow Upland

Lower Cenomanian abrasion surfaces of the Cracow Upland abound in borings of lithophags such as sponges, polychaetes, pelecypods and echinoids. Of many trace fossils occurring in these surfaces, the form Pseudopolydorltes radwanskii ichnogen. et ichnosp. nov., attributable to polychaetes, bas been established as a new one.