Fig. 51. A in The pharciceratid ammonoids from the Roteisenstein Formation of Dillenburg (Cephalopoda, Ammonoidea)

Fig. 51. A. Sandbergeroceras costatum (d'Archiac & de Verneuil, 1842), suture line of neotype MB.C.7695 from Dillenburg, at ww = 15.7 mm, wh = 12.7 mm.B. Sandbergeroceras tuberculosocostatum (Sandberger & Sandberger, 1850), suture line of specimen SMF.Mbg.6360 from Oberscheld, at ww = 13.5 mm, wh = 15.5 mm. Abbreviations: see Material and methods. Scale bar units = 1 mm.