Figure 13. 1. Astrononion gallowayi from sample BE1; 1a, side view showing wedge-shaped supplementary chambers surrounding umbilicus; 1b, view of the other side showing supplementary apertures at the posterior margin of the supplementary chambers; 1c, apertural view. 2. Buccella depressa Andersen from sample FC04-39; 2a, dorsal view showing lobulate periphery; 2b, ventral view. 3. Buccella frigida from sample BE1; 3a, dorsal view showing smooth test; 3b, ventral view showing pustules along sutures; 3c, side view showing plano-convex test. 4. Buccella hannai from sample BE1; 4a, dorsal view; 4b, ventral view showing radial sutures; 4c, side view showing biconvex test and limbate periphery. 5. Buccella inusitata from sample BE1; 5a, dorsal view; 5b, ventral view showing thick pustulose coating. 6. Buccella tenerrima from sample BE1; 6a, dorsal view showing overgrown last chamber; 6b, ventral view showing 8 chambers; 6c, side view. All scales are 10 µm unless otherwise indicated.