Hoeglundina elegans (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 : 41-42

Hoeglundina elegans (d'Orbigny)

Figures 14.22-15.2

1826 Rotalia (Turbinulina) elegans d’Orbigny , p. 276.

1941 Epistomina elegans (d’Orbingy) — LeRoy (Part 1), pp. 40, 41, pl. 1, figs. 5—7; LeRoy (Part 2), p. 84, pl. 4, figs. 13—15.

1944 Epistomina elegans (d’Orbingy) — LeRoy (Part 1), pp. 35, 36, pl. 3, figs. 15—17.

1964 Hoeglundina elegans (d’Orbigny) — LeRoy, p. F38, pl. 6, figs. 27, 28.

1965 Hoeglundina elegans (d’Orbigny) — Todd, pp. 56, 57, pl. 23, fig. 2.

1966 Hoeglundina elegans (d’Orbigny) — Belford, pp. 190, 191, pl. 36, figs. 8—13.

1985 Hoeglundina elegans (d’Orbigny) — Papp and Schmid, p. 59, pl. 49, figs. 1—6.

1987 Hoeglundina elegans (d’Orbigny) — Loeblich and Tappan, pl. 487, figs. 1—5.

1988 Hoeglundina elegans (d’Orbigny) — Wang, Zhang, Zhao, Min, Bian, Zheng, Cheng, and Chen, p. 145, pl. 20, figs. 2— 4; Marle, p. 145, pl. 5, figs. 18, 19.

1989 Hoeglundina elegans (d’Orbigny) — Ōki, pp. 153, 154, pl. 22, fig. 7; Inoue, pl. 21, fig. 5, pl. 31, fig. 13; Hess, p. 83, pl. 14, figs. 7, 8.

1990 Hoeglundina elegans (d’Orbigny) — Akimoto, p. 202, pl. 21, fig. 7, pl. 24, fig. 6; Ujiié, p. 53, pl. 32, figs. 3, 4.

1992 Hoeglundina elegans (d’Orbigny) — Hatta and Ujiié (b), p. 170, pl. 24, fig. 3.

1994 Hoeglundina elegans (d’Orbigny) — Jones, pp. 104, 105, pl. 105, figs. 3—6; Loeblich and Tappan, p. 98, pl. 174, figs. 1—6; Akimoto, p. 284, pl. 3, fig. 7.

1998 Hoeglundina elegans (d’Orbigny) — Hess, p. 83, pl. 14, figs. 7, 8.

Remarks. Most of the specimens exhibit eight chambers in the final whorl, whereas four relatively large individuals from the Minebari Formation show up to 14 chambers in the ultimate whorl. To the best of our knowledge, this large multichambered form has not been illustrated in previous work.

Occurrence. Rare in the Yonahama Formation, common in the Minebari Formation.

Figures

FIGURE 14. Family Ellipsolagenidae, Glandulinidae, and Epistominidae. All scale bars = 0.1mm. 1. Favulina scalariformis (Williamson), MPC-26258 from sample 4 (Minebari Formation, PL5). 2, 3. Fissurina angulata (Uchio), 2: MPC- 26261, 3: MPC-26262, both from sample MK01 (Yonahama F., PL2). 4, 5. Fissurina bradii Silvestri, 4: MPC-26263 from sample 6 (Yonahama F., PL2); 5: MPC-26264 from sample 14-2 (Yonahama F., PL4). 6, 7. Fissurina caribaea (Cushman), 6: MPC-26265 from sample 15 (Yonahama F., PL3); 7: MPC-26266 from sample MK01 (Yonahama F., PL2). 8, 9. Fissurina circularis Todd, 8: MPC-26267 from sample 3-2-low-silt (Onogoshi F., PL1); 9: MPC-26268 from sample MK02B (Minebari F., PL5). 10, 11. Fissurina marginata (Montagu), 10: MPC-26269 from sample 3-2-low-silt (Onogoshi F., PL1); 11: MPC-26270 from sample 16 (Yonahama F., PL3). 12. Fissurina quadrata (Williamson), MPC- 26271 from sample 1 (Minebari F., PL5). 13. Parafissurina basispinata McCulloch, MPC-26404 from sample 7 (Yonahama F., PL4). 14, 15. Parafissurina lata (Wiesner), 14: MPC-26405 from sample 2 (Minebari F., PL5); 15: MPC- 26406 from sample MK01 (Yonahama F., PL2). 16, 17. Pseudofissurina metaconica (McCulloch), 16: MPC-26432 from sample 8-2 (Yonahama F., PL4); 17: MPC-26433 from sample 17 (Yonahama F., PL2). 18, 19. Montcharmontzeiana leminiscata (Loeblich and Tappan), 18: MPC-26377, 19: MPC-26378, both from sample 7 (Yonahama F., PL4). 20, 21. Glandulina ovula d'Orbigny, 20: MPC-26279 from sample 7 (Yonahama F., PL4); 21: MPC-26280 from sample 10 (Onogoshi F., PL2). 22, 23. Hoeglundina elegans (d'Orbigny), 22: MPC-26322 from sample 4 (Minebari F., PL5); 23: MPC-26323 from sample 13 (Minebari F., PL5).

FIGURE 15. Family Epistominidae and Globorotaliidae. All scale bars = 0.1mm, unless otherwise indicated. 1, 2. Hoeglundina elegans (d'Orbigny) large form, 1: MPC-26324 from sample 2-2 (Minebari Formation, PL5); 2: MPC- 26325 from sample 4 (Minebari F., PL5). 3, 4. Clavatorella aff. suturanii Giannelli and Salvatorini, 3: MPC-25930 from sample 5 (Minebari F., PL5); 4: MPC-25931 from sample MK01 (Yonahama F., PL2). 5, 6. Globorotalia conoidea Walters, 5: MPC-25968 from sample 7 (Yonahama F., PL4); 6: MPC-25969 from sample 8-2 (Yonahama F., PL4). 7, 8. Globorotalia conomiozea Kennett, 7: MPC-25970 from sample 3 (Onogoshi F., PL1); 8: MPC-25971 from sample 6 (Yonahama F., PL2). 9, 10. Globorotalia crassaformis (Galloway and Wissler), 9: MPC-25972 from sample MK02A (Minebari F., PL5); 10: MPC-25973 from sample MK02B (Minebari F., PL5). 11, 12. Globorotalia cultrata (d'Orbigny), 11: MPC-25974 from sample MK01 (Yonahama F., PL2); 12: MPC-25975 from sample MK02A (Minebari F., PL5).