Fig. 44 in The ammonoids from the Gattendorfia Limestone of Oberrödinghausen (Early Carboniferous; Rhenish Mountains, Germany)

Fig. 44. Stockumites voehringeri sp. nov. from the Oberrödinghausen railway cutting. A. Cross section of paratype MB.C.31111.2 (Weyer 1993–1994 Coll.) from bed 3d2. B. Suture line of paratype MB.C.31111.3 (Weyer 1993–1994 Coll.) from bed 3d2, at dm = 20.0 mm, ww = 13.1 mm, wh = 12.6 mm. C. Suture line of paratype GPIT-PV-63885 (Vöhringer Coll.) from bed 3b, at ww = 20.5 mm, wh = 17.5 mm. D. Course of the internal shell thickenings of paratype GPIT-PV-63850 (Vöhringer Coll.) from bed 3e, at dm = 34.0 mm, ww = 17.0 mm, wh = 21.5 mm. E. Course of the internal shell thickenings of holotype GPIT-PV-63995 (Vöhringer Coll.) from unknown bed of Oberrödinghausen, at dm = 40.0 mm, ww = 20.5 mm, wh = 22.0 mm. F –H. 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. Scale bar units = 1 mm.