Fig. 59 in An early Cambrian fauna of skeletal fossils from the Emyaksin Formation, northern Siberia

Fig. 59. Carapace fragments of?bradoriids from lower Cambrian Emyaksin Formation, Bol'shaya Kuonamka River, Anabar Uplift, Siberia. A. SMNH Ar 63460, sample 7/55.8; A1, lamellar microstructure of the wall; A2, concentric lamellae in a broken off tuberculum; A3, general view of a spine with deformed base. B. SMNH Ar 63454, sample 6/66.2; B1, lateral view of a prominent spine; B2, view on the apical part of the spine covered with reticulation and tubercles. C. SMNH Ar 63455, sample 6/66.2; C1, close-up of C2, tubercles and surface reticulation; C2, overall view of a tuberculate cone; C3, tuberculum enlarged. D. Paired tuberculate cones, SMNH Ar 63459, sample 7/55; plan view. E. Tuberculate cone, SMNH Ar 63457, sample 7/54; E1, general view; E2, close-up of E1, tubercules and surface reticulation. F. Prominent spine with weathered tubercles, SMNH Ar 63458, sample 7/54; lateral view. G. SMNH Ar 63456, sample 6/66.2; G1, G2, cuticular fragment with conical spine and residual reticulation. Scale bar: A1, A2, 15 μm; C1, C3, 60 μm; E2, 120 μm; B2, C2, D, G, 300 μm; A3, B1, E1, F, 600 μm.