Columenoceras agassizi (BARRANDE, 1866) from the Late Silurian, borehole Parczew IG 10, depth of 1235 m, Poland; longitudinal section through a fragment of the phragmocone (a) and longitudinal section through the siphuncle (b).

Columenoceras agassizi (Barrande, 1866) from the Ludlow of Poland. 1. Specimen from Prągowiec by  Łagów. 2. Specimen from erratic boulder of graptolite limestone, Orłowo. 3. Longitudinal section through a phragmocone from the same boulder. 4. Specimen from Prągowiec (a) and its enlarged part (b). 5. Phragmocone from the same locality. 6. Crushed shell, same locality. 7. Apex of a shell  possibly attributable to the species, .graptolite limestone boulder E-258, Rozewie. 8. Phragmocone in external view (a) and its longtudinal section (b), borehole Parczew lG 10 (depth of 1235 m) .