Lenticulina sp. B

Setoyama, Eiichi & Kaminski, Michael A., 2015, Neogene benthic foraminifera from the southern Bering Sea (IODP Expedition 323), Palaeontologia Electronica (International ed. in English) 76 (4), pp. 1-30 : 22

Lenticulina sp. B

Figure 7.9a, b

Description. Test large, circular in outline, planispiral with seven and a half chambers in the final whorl and an acute periphery. Sutures thick or slightly elevated, curved backwards. Chambers increasing in size gradually. Wall smooth without ornamentation. Aperture terminal with striations.

Figures

FIGURE 7. All scale bars are 100 µm. 1. Quadrimorphina laevigata, 13H-3, 146–148 cm; a. dorsal view; b. ventral view; c. edge view. 2. Oridorsalis umbonatus, 3H-CC; a. dorsal view; b. ventral view; c. edge view. 3. Gyroidina? sp. A, 36H-5, 148–150 cm; a. dorsal view; b. ventral view; c. edge view. 4. Gyroidina? sp. A, 36H-CC; a. dorsal view; b. ventral view; c. edge view. 5. Hansenisca sp. A, 9H-3, 146–148 cm; a. dorsal view; b. ventral view; c. edge view showing a basal slit aperture. 6. Hansenisca sp. A, 16H-3, 146–148 cm; a. dorsal view; b. ventral view; c. edge view showing a low arch aperture. 7. Epelistoma sp. A, 63X-3, 146–148 cm, lateral view. 8. Lenticulina sp. A, 26H-5, 147– 149 cm; a. lateral left view; b. edge view. 9. Lenticulina sp. B, 62X-5, 146–148 cm; a. lateral left view; b. edge view. 10. Hemirobulina sp. A, 9H-5, 146–148 cm; a. lateral left view; b. edge view. 11. Reussoolina apiculata, 28H-CC, lateral view. 12. Lagena cf. Lagena tagusensis, 12H-3, 146–148 cm; a. lateral view; b. apertural view. 13. Lagena striata, 10H-3, 146–148 cm; a. lateral view; b. apertural view. 14. Oolina squamosa, 10H-3, 146–148 cm; a. lateral view; b. apertural view. 15. Glandulina ovula, 36H-5, 148/150 cm, lateral view.