Takayanagia, Nomura, 1983

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 : 8

Takayanagia cf. Takayanagia cushmani ( Stewart and Stewart, 1930)

Figures 3.9a–c , 8.4

1930 Cassidulina cushmani Stewart and Stewart : p. 71, pl. 9, figs. 5a, b.

1982 “ Islandiella” cushmani (Stewart and Stewart) ; Matoba and Yamaguchi, p. 1045, pl. 2, fig. 1a,b.

Remarks. The original description of the species by Stewart and Stewart (1930) mentions the presence of a slight tooth plate, and our specimens also possess a tooth plate that varies in size (see figs. 3.9a, 8.4). It differs from Takayanagia delicata ( Cushman, 1927a) by possessing a more acute periphery and possessing a tooth plate, and from Cassidulina teretis Tappan (1951) by lacking umbilical bosses. It also differs from the typical Takayanagia cushmani by possessing a clear tooth plate. A very similar form was reported as “ Islandiella cushmani ” by Matoba and Yamaguchi (1982), which also possesses a Cassidulina - type aperture with a tooth plate.

Superfamily TURRILINACEA Cushman, 1927b

Family TURRILINIDAE Cushman, 1927b

Subfaminly TURRILINIDAE Cushman, 1927b

Genus EUBULIMINELLA Revets, 1993

Eubuliminella exilis ( Brady, 1884)

Figures 4.2 , 8.7

1884 Bulimina elegans var. exilis Brady , p. 399, pl. 50, figs. 5, 6.

1958 Bulimina exilis Brady : Asano, p. 3, pl. 3, figs. 7a, 7b.

1993 Eubuliminella exilis (Brady) : Revets, p. 141, pl. 1, figs. 1–7.

Remarks. Only the slender specimens with limbate sutures as noted by Revets (1993) are included.

Figures

FIGURE 3. All scale bars are 100 µm. 1. Pyrgo murrhina, 13H-3, 146–148 cm; a. lateral view; b. apertural view. 2. Pyrgo sp. A, 13H-3, 146–148 cm; a. lateral view; b. apertural view. 3. Triloculina cf. Triloculina trihedra, 9H-5, 146– 148 cm; a. lateral view; b. apertural view. 4. Bolivina seminuda, 3H-CC, lateral view. 5. Bolivina sp. A, 36H-CC; a. lateral view; b. edge view showing the asymmetrically positioned aperture. 6. Brizalina pacifica, 11H-5, 146–148 cm; a. lateral view; b. edge view. 7. Brizalina panayensis, 1H-CC; a. lateral view; b. edge view. 8. Bolivinita quadrilatera, 61X-5, 115–117 cm; a. lateral view; b. edge view showing the asymmetrically positioned aperture. 9. Takayanagia cf. Takayanagia cushmani, 1H-CC; a. ventral view showing the tooth plate; b. dorsal view; c. edge view. 10. Rutherfordoides tenuis, 10H-3, 146–148 cm; a. ventral view; b. dorsal view. 11. Globocassidulina neomargareta, 9H-5, 146– 148 cm; a. ventral view; b. apertural view showing the tooth plate; c. dorsal view; d. edge view. 12. Globocassidulina subglobosa, 13H-3, 146–148 cm; a. ventral view; b. dorsal view; c. edge view. 13. Islandiella helenae, 12H-3, 146– 148 cm; a. ventral view; b. ventral view in immersion; c. dorsal view; d. edge view. 14. Globocassidulina sp. A, 3H- CC; a. ventral side, b. dorsal side, c. edge view.

FIGURE 4. All scale bars are 100 µm. 1. Takayanagia delicata, 1H-CC; a. ventral view; b. dorsal view; c. edge view. 2. Eubuliminella exilis, 1H-CC, lateral view. 3. Eubuliminella cf. Eubuliminella exilis, 1H-CC, lateral view. 4. Fursenkoina complanata, 1H-CC, a. lateral view; b. edge view. 5. Bulimina rostratiformis, 8H-3, 146–148 cm; a. lateral view; b. apertural view. 6. Bulimina spicata, 62X-5, 146–148 cm, lateral view. 7. Globobulimina affinis, 8H-CC, lateral view. 8. Globobulimina auriculata, 25H-CC, lateral view. 9. Globobulimina barbata, 8H-3, 146–148 cm; a. lateral view; b. apertural view. 10. Globobulimina barbata, 52H-CC, lateral view. 11. Globobulimina cf. Globobulimina pacifica, 8H-CC, lateral view. 12. Globobulimina cf. Globobulimina spinenscens, 61X-5, 115–117 cm; a. lateral view; b. apertural view. 13. Globobulimina ovata, 18H-3, 146–148 cm; a. lateral view; b. apertural view. 14. Globobulimina ovata, 36H-5, 148–150 cm, lateral view. 15. Uvigerina peregrina, 1H-CC; a. lateral view; b. apertural view. 16. Uvigerina peregrina, 3H-CC; a. lateral view; b. apertural view. 17. Uvigerina proboscidea, 12H-3, 146–148 cm; a. lateral view; b. apertural view. 18. Uvigerina proboscidea, 14H-CC, lateral view. 19. Uvigerina senticosa, 7H-CC, lateral view. 20. Uvigerina senticosa, 14H-CC; a. lateral view; b. apertural view. 21. Uvigerina interruptacostata, 3H-CC; a. lateral view; b. apertural view. 22. Uvigerina interruptacostata, 8H-3, 146–148 cm, lateral view. 23. Rutherfordoides erectus, 1H-CC; a. lateral view view; b. edge view. 24. Siphonodosaria sp. A, 36H-5, 148–150 cm, lateral view.

FIGURE 8. All scale bars are 100 µm. 1. Bolivina sp. A, 1H-CC, lateral view. 2. Brizalina pacifica, 3H-CC, lateral view. 3. Brizalina panayensis, 3H-CC, lateral view. 4. Takatanagia cf. Takayanagia cushmani, 1H-CC, lateral view showing the apertural plate. 5. Rutherfordoides tenuis, 16H-5, 146–148 cm, lateral view. 6. Islandiella helenae, 13H-3, 146– 148 cm, lateral view. 7. Eubuliminella exilis, 1H-CC, lateral view. 8. Eubuliminella cf. Eubuliminella exilis, 3H-CC, lateral view. 9. Fursenkoina complanata, 3H-CC, lateral view. 10. Globobulimina cf. Globobulimina spinescens, 61X-5, 115–117 cm, lateral view. 11. Uvigerina proboscidea, 59X-3, 145–147 cm, lateral view. 12. Uvigerina senticosa, 8H-5, 146–148 cm, lateral view. 13. Rutherfordoides erectus, 1H-CC, lateral view. 14. Siphonodosaria? sp. A, 36H-5, 148– 150 cm, lateral view. 15. Siphonodosaria? sp. B, 13H-5, 146–148 cm, lateral view. 16. Stilostomella fistuca, 36H-CC, lateral view. 17. Laticarinina pauperata, 61X-CC, lateral view. 18. Nonionella digitata, 3H-CC, lateral view. 19. Nonionellina labradorica, 3H-CC, lateral view. 20. Nonionellina cf. Nonionellina labradorica, 3H-CC, lateral view. 21. Elphidium batialis, 3H-CC, lateral view. 22. Lotostomoides calomorphum, lateral view. 23. Neugeborina longiscata, 16H-5, 146–148 cm, lateral view. 24. Laevidentalina californica, 26H-CC, lateral view. 25. Laevidentalina sp. A, 36H-5, 148– 150 cm, lateral view. 26. Mucronina sp. A, 61X-CC, lateral view. 27. Astacolus sp., 22H-CC, lateral view. 28. Procerolagena gracillima, 16H-5, 146–148 cm, lateral view. 29. Lagena hispidula, 13H-5, 146–148 cm, lateral view. 30. Lagena striata, 8H-3, 146–148 cm, lateral view. 31. Oolina squamosa, 9H-5, 146–148 cm, lateral view. 32. Parafissurina caledoniana, 8H-CC, lateral view.