Fig. 4 in A late Paleocene fauna from shallow-water chemosynthesis-based ecosystems, Spitsbergen, Svalbard

Fig. 4. Aporrhaid and scaphandrid gastropods from the upper Paleocene, Basilika Formation, locality 500 m west from Trigonometric point 25, Hollendarbukta (A, B, D) and Fossildalen (C), Spitsbergen, Svalbard. A, B. Aporrhais cf. gracilis Koenen, 1885, GPIBo 117 (A) and GPIBo 116 (B) in lateral (A1, B1) and apical (A2, B2) views. C.?Aporrhais cf. gracilis Koenen, 1885, identified by Hägg (1925) as Nassa sp., NRM-PZ Mo 149182 in apical (C1), lateral C2) and latero-apertural (C3) views. D. Ellipsoscapha sp. GPIBo 115 in apertural (D1), lateral (D2), apical (D3), and abapical (D4) views.