Fig. 105 in The ammonoids from the Gattendorfia Limestone of Oberrödinghausen (Early Carboniferous; Rhenish Mountains, Germany)

Fig. 105. Paprothites dorsoplanus (Schmidt, 1924) from the Oberrödinghausen railway cutting. A. Cross section of specimen GPIT-PV-63971 (Vöhringer Coll.) from bed 3d. B. Growth line course of specimen GPIT-PV-63967 (Vöhringer Coll.) from bed 3d, at ww = 6.4 mm, wh = 5.2 mm. C–E. 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.