Clinoceras muensteri (Wedekind, 1908) from the Late Devonian of Poland. 1. Juvenile specimen in lateral (a) and ventra? (b) views; Famennian Platyclymenia Zone, Łagów-Dule. 2. Medial section through the phragmocone; Farnennian Conditolepis crepida Zone, Żbik gorge by Dębnik near Cracow. 3. Phragmocone in ventral? (a) and lateral (b) views; Famennian Cheiloceras Zone, Jabłonna, bed J. 15. 4. Longitudinal section through the phragmocone; latest Frasnian, Plucki by Łagów. 5. Medial section through the phragrnocone; Platyclymenia Zone, Łagów-Dule. 6. Subadult specimen in lateral (a) and dorsal (b) views; same horizon and locality. 7. Phragmocone in lateral (a) and ventral? (b) views, same horizon and locality. 8. Adult specimen in lateral (a) and dorsal? (b) views, same horizon and locality. 9, Longitudinal section through the phragmocone, Late Frasnian or Early Famennian, Kielce-Karczówka.

Clinoceras muensteri (Wedekind, 1908) from the Late Devonian of Holy Cross Mts., Poland; reconstruction of an adult specimen (a), based on a specimen from Łagów-Dule; variability of the septal suture in the population from Łagów-Dule (b); longitudinal section through the phragmocone, from the latest Frasnian, Płucki by Łagów.