Fig. 8 in An early Cambrian fauna of skeletal fossils from the Emyaksin Formation, northern Siberia

Fig. 8. Helcionellid mollusc Figurina cf. F. nana (Zhou and Xiao, 1984) internal moulds from lower Cambrian Emyaksin Formation, Bol'shaya Kuonamka River, Anabar Uplift, Siberia; sample 7/70. A. SMNH Mo 167659; upper (A1), lateral (A2), and sub-apical (A3) views; A4, close-up of A1, pits on the surface of internal mould. B. SMNH Mo 167660; upper (B1), sub-apical (B2), lateral (B3, B4) views. Scale bar 600 μm, except A4, 30 μm.