Fig. 33 in The ammonoids from the Gattendorfia Limestone of Oberrödinghausen (Early Carboniferous; Rhenish Mountains, Germany)

Fig. 33. Stockumites intermedius (Schindewolf, 1923) from bed 5 of the Oberrödinghausen railway cutting; all Vöhringer Coll. A. Cross section of specimen MB.C.31078.1. B. Cross section of specimen MB.C.31078.2. C. Suture line of specimen GPIT-PV-64015, at dm = 28.2 mm, ww = 21.0 mm, wh = 14.8 mm. D. Growth line course of specimen GPIT-PV-63993, at ww = 22.0 mm, wh = 20.0 mm. E–G. Ontogenetic development of the conch width index (ww/dm), umbilical width index (uw/ dm), whorl width index (ww/wh) and whorl expansion rate (WER) of selected specimens. Grey dots = representatives from bed 6. Scale bar units = 1 mm.