Fig. 33 in Early-Middle Ordovician cephalopods from Ny Friesland, Spitsbergen - a pelagic fauna with Laurentian affinities

Fig. 33. Median sections of phragmocones. A–B. Hemichoanella occulta sp. nov., from bed PO 131. C–E. Eosomichelinoceras borealis sp. nov., from bed PO 123.3, Olenidsletta Member, Floian, Ordovician, Profilstranda section, Ny Friesland, Spitsbergen. A–B. Specimen FMNH-P30420, holotype. C. Specimen FMNH-P30305. D. Specimen FMNH-30288. E. Specimen FMNH-30284. Scale bars: A–B, E = 5 mm; C–D = 1 mm.