Fursenkoina acuta (d’Orbigny)

Hanagata, S & Nobuhara, T, 2015, Illustrated guide to Pliocene foraminifera from Miyakojima, Ryukyu Island Arc, with comments on biostratigraph, Palaeontologia Electronica (Cambridge, England) 33 (8), pp. 1-142 : 90

Fursenkoina acuta (d’Orbigny)

Figures 27.16

1846 Polymorphina acuta d’Orbigny , p. 234, pl. 13, figs. 4, 5, pl. 14, figs. 5—7.

1848 Virgulina schreibersiana Cžjžek , p. 147, pl. 13, figs. 18—23.

1911 Virgulina schreibersiana Czjzek — Cushman, p. 94, fig. 148.

1941 Virgulina squammosa d’Orbigny — LeRoy (Part 1), p. 33, pl. 2, figs. 24, 25 (non Virgulina squammosa d’Orbigny, 1826 ).

1942 Virgulina schreibersiana Czjzek — Cushman, pp. 12, 13, pl. 4, fig. 1.

1959 Virgulina schreibersiana Czjzek — Graham and Militante, p. 90, pl. 13, fig. 14.

1964 Virgulina schreibersiana Czjzek — LeRoy, p. F33, pl. 3, fig. 14.

1966 Fursenkoina schreibersiana (Czjzek) — Belford, pp. 136, 137, pl. 9, figs. 18—21.

1985 Fursenkoina acuta (d’Orbigny) — Papp and Schmid, p. 82, pl. 75, figs. 1—6.

1987 Fursenkoina squammosa (d’Orbigny) — Loeblich and Tappan, pl. 578, figs. 18—23.

1988 Fursenkoina schreibersiana (Czjzek) — Wang, Zhang, Zhao, Min, Bian, Zheng, Cheng, and Chen, p. 173, pl. 30, fig. 5.

1989 Fursenkoina schreibersiana (Czjzek) — Ōki, p. 142, pl. 18, fig. 5.

1993 Fursenkoina schreibersiana (Czjzek) — Haig, pl. 5, figs. 18—20.

1994 Fursenkoina schreibersiana (Czjzek) — Loeblich and Tappan, p. 131, pl. 257, figs. 1—12.

1995 Fursenkoina schreibersiana (Czjzek) — Ujiié, p. 64, pl. 7, fig. 3.

1996 Fursenkoina schreibersiana (Czjzek) — Revets, pp. 12, 13, pl. 8, figs. 5—8.

2001 Fursenkoina acuta (d’Orbigny) — Kawagata, p. 92, fig. 9-8.

Remarks. We follow Revets’s (1996a) discussion on the taxonomic relationship with F. squammosa , and Papp and Schmid (1985) and Kawagata (2001) with F. schreibersiana , granting priority to F. acuta .

Occurrence. A single specimen from the Minebari Formation.

Figures

FIGURE 27. Family Uvigerinidae, Reussellidae, Fursenkoinidae, and Pleurostomellidae. All scale bars = 0.1mm. 1, 2. Euuvigerina vadescens (Cushman), 1: MPC-26247 from sample 10 (Onogoshi Formation, PL2); 2: MPC-26248 from sample 11 (Onogoshi F.,?PL1). 3—5. Uvigerina flintii Cushman, 3: MPC-26519 from sample 2-2 (Minebari F., PL5); 4: MPC-26520 from sample 3 (Onogoshi F., PL1); 5: MPC-26521 from sample 17 (Yonahama F., PL2). 6, 7. Uvigerina peregrina Cushman, 6: MPC-26522 from sample 6 (Yonahama F., PL2); 7: MPC-26523 from sample 6-2 (Yonahama F., PL2). 8. Uvigerina schencki Asano, MPC-26524 from sample 2 (Minebari F., PL5). 9. Uvigerina schwageri Brady, MPC-26525 from sample 5-2 (Minebari F., PL5). 10, 11. Angulogerina angulosa (Williamson), 10: MPC-26125 from sample MK01 (Yonahama F., PL2); 11: MPC-26126 from sample MK02B (Minebari F., PL5). 12, 13. Trifarina bradyi Cushman, 12: MPC-26517 from sample 3-2-up-sand (Onogoshi F., PL1); 13: MPC-26518 from sample 8 (Yonahama F., PL4). 14, 15. Reussella pulchra Cushman, 14: MPC-26461 from sample 2 (Minebari F., PL5); 15: MPC-26462 from sample MK01 (Yonahama F., PL2). 16. Fursenkoina acuta (d'Orbigny), MPC-26274 from sample 4-2 (Minebari F., PL5). 17—19. Neocassidulina hadai (Uchio), 17: MPC-26384 from sample 1 (Minebari F., PL5); 18: MPC-26385 from sample 15 (Yonahama F., PL3); 19: MPC-26386 from sample 16 (Yonahama F., PL3). 20, 21. Rutherfordoides mexicanus (Cushman), 20: MPC-26472 from sample 4 (Minebari F., PL5); 21: MPC-26473 from sample 5 (Minebari F., PL5). 22, 23. Rutherfordoides virgus (Nomura), 22: MPC-26474 from sample 1 (Minebari F., PL5); 23: MPC-26475 from sample 3-2-low-silt (Onogoshi F., PL1). 24, 25. Pleurostomella acuminata Cushman, 24: MPC-26420 from sample 7 (Yonahama F., PL4); 25: MPC-26421 from sample 17 (Yonahama F., PL2). 26—28. Pleurostomella alternans Schwager, 26: MPC-26422 from sample 7 (Yonahama F., PL4); 27: MPC-26423 and 28: MPC-26424 from sample 8-2 (Yonahama F., PL4); 27 large variation.