Bulimina gutta Chapman and Parr

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 : 82

Bulimina gutta Chapman and Parr

Figures 26.5, 26.6

1937 Bulimina buchiana d’Orbigny , var. gutta Chapman and Parr , p. 86, pl. 8, fig. 14.

1947 Bulimina buchiana d’Orbigny , var. gutta Chapman and Parr — Cushman and Parker, p. 127, pl. 29, fig. 16.

1966 Laterostomella voluta Belford , pp. 44, 45, pl. 3, figs. 14—16.

1977 Bulimina cf. buchiana gutta Chapman and Parr — McDougall, pp. 244, 245, pl. 104, figs. 10, 11.

1989 Laterostomella striata Klasz and Rérat — Klasz, Kroon, and Hinte, pp. 215—226.

Remarks. This species is characterized by an elongate and slender test with raised striae that persist to the penultimate chamber. Chamber arrangement of the earlier stage is difficult to observe due to the raised striae; later chambers are strongly twisted which suggests a triserial early stage. The genus Laterostomella sensu Klasz et al. (1989) is biserial; species belonging to the genus show a clearly different form from the present species.

Occurrence. Common in the Yonahama Formation.

Figures

FIGURE 26. Family Buliminidae, Buliminellidae, and Uvigerinidae. All scale bars = 0.1mm, unless otherwise indicated. 1, 2. Bulimina aculeata d'Orbigny, 1: MPC-26168 from sample 8 (Yonahama Formation, PL4); 2: MPC-26169 from sample 8-2 (Yonahama F., PL4). 3, 4. Bulimina aff. kochiensis Takayanagi, 3: MPC-26174 from sample 1 (Minebari F., PL5); 4: MPC-26175 from sample 2 (Minebari F., PL5). 5, 6. Bulimina gutta Cushman and Parr, 5: MPC- 26170 from sample 14 (Yonahama F., PL4); 6: MPC-26171 from sample 14-2 (Yonahama F., PL4). 7, 8. Bulimina inflata Seguenza, 7: MPC-26172, 8: MPC-26173, both from sample MK01 (Yonahama F., PL2). 9, 10. Bulimina marginata d'Orbigny, 9: MPC-26176 from sample MK01 (Yonahama F., PL2); 10: MPC-26177 from sample MK02B (Minebari F., PL5). 11, 12. Bulimina striata d'Orbigny, 11: MPC-26178 from sample 3-2-low-silt (Onogoshi F., PL1); 12: MPC-26179 from sample 4-2 (Minebari F., PL5). 13, 14. Bulimina subornata Brady, 13: MPC-26180 from sample 5 (Minebari F., PL5); 14: MPC-26181 from sample MK02B (Minebari F., PL5). 15, 16. Bulimina truncana Gümbel, 15: MPC-26182 from sample 7 (Yonahama F., PL4); 16: MPC-26183 from sample 14-2 (Yonahama F., PL4). 17—19. Globobulimina pyrula (d'Orbigny), 17: MPC-26281 from sample 17 (Yonahama F., PL2); 18: MPC-26282 from sample MK02B (Minebari F., PL5); 19: MPC-26283 from sample 2-2 (Minebari F., PL5). 20. Buliminella elegantissima (d'Orbigny), MPC-26184 from sample MK02B (Minebari F., PL5). 21, 22. Euuvigerina asperula (Cžjžek), 21: MPC- 26243 from sample 8 (Yonahama F., PL4); 22: MPC-26244 from sample 16 (Yonahama F., PL3). 23, 24. Euuvigerina canariensis (d'Orbigny), 23: MPC-26245 from sample 2 (Minebari F., PL5); 24: MPC-26246 from sample MK02A (Minebari F., PL5).