Fig. 3 in The tube wall of Cambrian anabaritids

Fig. 3. Jacutiochrea tristicha (Missarzhevsky), specimen SMNH X3409 (same as in Figs. 2 and 5), sample K2/25. A. Tube, with positions of B and of Fig. 5A indicated. B. Close−up of A, showing position of chevron pattern in relation to flange. C. Close−up of B, showing chevron pattern. D. Close−up of C, showing detail of chevron pattern and fibre−shaped elements. E. Close−up of D, showing fibres. Rounded tips of fibres and fine granulosity are features of the gold coating.