Fig. 62 in Terreneuvian stratigraphy and faunas from the Anabar Uplift, Siberia

Fig. 62. Problematic calcium phosphatic sclerites Fomitchella infundibuliformis Missarzhevsky in Rozanov et al., 1969 (A–C, E–G) and Fomitchella sp. (D), from early Cambrian Medvezhya Formation, western flank of the Anabar Uplift, Siberia, Russia; samples K2/33 (A, E–G), section 3; 1/39.3 (B), section 1; and K1a/82 (C, D), section 2. A–G. SMNH X5924–5930, respectively. A1, B1, C, D, E1, F, G1, lateral; A2, apertural; B2, apical views; E2, G2, enlargements show marginal folds in the wall and fibres of the outer layer. Scale bar 50 μm (G2), 100 μm (E2), 250 μm (A, B1, F, G1), 500 μm (B2, C, D, E1).