Fig. 11 in Taxonomy and ontogeny of the Lituitida (Cephalopoda) from Orthoceratite Limestone erratics (Middle Ordovician)

Fig. 11. Septum distances in Rhynchorthoceras angelini (Boll, 1857) from the Upper Red Orthoceratite Limestone. Upper row = empirical data points; lower row = three data points averaged. A–B. Specimen MB.C.11725.1 (Remelé 1879 Coll.) from Heegermühle (Brandenburg). C–D. Specimen MB.C.11716 (Hentig 1880 Coll.) from Joachimsthal (Brandenburg). E–F. Specimen MB.C.29653 (Bottke Coll.) from Gärdslösa (Island of Öland, Sweden).