Fig. 7. Orbaspina gelasinus n.gen. and n in A New Siphonotretid Brachiopod from the Silurian of Central-Western New South Wales, Australia

Fig. 7. Orbaspina gelasinus n.gen. and n.sp.; a–d, paratype AMF122216, fragment from sample BM 13.80, external view (a), detail of spines (b), anterior view (c), interior view with spine openings on internal surface indicated by arrows (d); e, f, paratype AMF122217, fragment from sample BM 14.30, external view (e), detail of spines with weak transverse grooves on spines indicated by arrows (f); g, paratype AMF122218, dorsal valve from sample BM 15.40, external view; h, paratype AMF122219, dorsal valve fragment from sample BM 11.20, external view showing well developed post-larval shell dimpling; i, j, paratype AMF122220, fragment of dorsal valve pseudointerarea from sample BM 14.40, with two spines projecting from underneath the pseudointerea as indicated by arrows, in plan (i) and anterior views (j). Scale bars = 1 mm (a, d, g, h); 100 µm (c, e, f, i, j); 10 µm (b).