Stroboceras humerosum (SCHMIDT, 1951 ) ,Visean (D2) Orlej quarry by Zalas near Cr acow. Poland

1. Deformed complete specimen, ZMS A.1.70j/09.

2. Fragment of ventral side of a phragmocone, ZMS A.1.70/118.

Stroboceras humerosus (SCHMIDT.1951); Vlsean (D2, Orlej quarry, Zalas near Cracow, Poland;

a.  Growth lines and the septal suture ;

b. reconstruction of the subadult shell, from severalincomplete specimens.