Dideroceras wahlenbergi (Foord, 1887); Lenodus variabilis Zone, Late Kundan, erratic boulders, Poland. 1. Two sections through spiculum of a phragmocone (a, b), ZPAL N/045; erratic boulder E-089. Zgierz. 2 Longitudinal section through a phragmocone , ZPAL N/047, Zgierz. 3. Longitudinal and transverse sections through a phragmocone , ZPAL N/087, Zgierz.

Dideroceras wahlenbergi (Foord, 1887), specimen ZPAL N/045, boulder E-096; L. variabilis Zone, Kundan, B IIIB, Zgierz, Poland.  Longitudinal section through a siphuncle (a) and transverse section of the whole shell (b).