Anthoceras vaginatum (Schlotheim, 1820); a Section through a siphuncle,ZPAL N/023, boulder E-079, E. pseudoplanus Zone, Kundan, Mochty, Poland; b septal suture, ZPAL N/022 same boulder; c septal suture, ZPALN/017, A. variabilis ? Zone; d section through a siphuncle, ZPAL N/023, boulder E-079; e section through apical part of shell, ZPAL N/021, same boulder; f section through apical part of a shell, ZPAL N/022, same boulder. Dideroceras kundense (Balaschov, 1968); g. Section through a siphuncle, IG 137.11.43 (erratic boulder, Kundan?), Świebodzice; h section through a siphuncle, ZPAL N/063a; boulder E-079, Mochty, E. pseudoplanus Zone, Kundan; i section through an isolated siphuncle, ZPAL N/063b, same boulder; j section through a shell, ZPAL N/062, same boulder. Dideroceras wahlenbergi (Foord, 1887); k Section through a siphuncle,ZPAL N/045, boulder E-096, A. variabi/is Zone, Kundan, Zgierz, Poland; l section through shell of the same specimen;