Tentaculites of the Upper Silurian and Lower Devonian of Poland

The tentaculites, described in the present paper, come from the Upper Silurian deposits of the Baltic coastal region and the Lower Devonian deposits of the Radom-Lublin region. The Upper Silurian assemblage of tentaculites allows one to compare and correlate the Upper Silurian deposits of Northern Europe. The Lower Devonian tentaculites are' indicative of the Gedinnian and Siegenian age of the deposits under study and of their close correlations primarily with Podolia.