Fig. 2 in The cephalopods of the Boda Limestone, Late Ordovician, of Dalarna, Sweden

Fig. 2. Polished median section of a fragment of a phragmocone of Geisonoceras wegelini (Angelin in Angelin & Lindström, 1880) comb. nov., PMU 26747, Unskarsheden. The chamber is filled with epiand hypsoseptal deposits (a), a layered wackestone with bird's eye structures (b), a concentration of ostracods (c) and a sparitic space (d). Picture on the right is detail of picture on the left. Left scale = 10 mm, right scale = 1 mm.