Globigerinoides extremus Bolli and Bermúdez

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 : 59-60

Globigerinoides extremus Bolli and Bermúdez

Figures 20.1, 20.2

1965 Globigerinoides obliquus extremus Bolli and Bermudez , p. 139, pl. 1, figs. 10—12.

1968 Globigerinoides obliquus Bolli — Huang, p. 60, pl. 11, figs. 18, 19.

1975 Globigerinoides obliquus extremus Bolli and Bermudez — Ibaraki and Tsuchi, pl. 12, fig. 2.

1977 Globigerinoides obliquus extremus Bolli and Bermudez — Kadar, p. 67, pl. 1, fig. 7.

1978 Globigerinoides extremus Bolli and Bermudez — Oda, p. 53, pl. 3, figs. 5, 6.

1983 Globigerinoides extremus Bolli and Bermudez — Kennett and Srinivasan, p. 58, pl. 12, figs. 1—3.

1985 Globigerinoides extremus Bolli and Bermudez — Ujiié, p. 110, pl. 5, figs. 2—5.

1985 Globigerinoides obliquus extremus Bolli and Bermudez — Ibaraki, p. 113, pl. 3, figs. 13, 14; Bolli and Saunders, pp. 194, 195, fig. 20.11.

2004 Globigerinoides obliquus Bolli — Hanagata, pl. 5, fig. 5.

Occurrence. Common in the Oura, Onogoshi, and

Yonahama formations; a single specimen from the

Minebari Formation.

Figures

FIGURE 20. Family Globigerinidae. All scale bars = 0.1mm. 1, 2. Globigerinoides extremus Bolli and Bermúdez, 1: MPC-25955 from sample 14 (Yonahama Formation, PL4); 2: MPC-25956 from sample 15 (Yonahama F., PL3). 3, 4. Globigerinoides obliquus Bolli, 3: MPC-25957 from sample 6 (Yonahama F., PL2); 4: MPC-25958 from sample MK01 (Yonahama F., PL2). 5, 6. Globigerinoides pyramidalis (Van den Broeck), 5: MPC-25959 from sample 1 (Minebari F., PL5); 6: MPC-25960 from sample 2 (Minebari F., PL5). 7—9. Globigerinoides ruber (d'Orbigny), 7: MPC-25961 from sample MK01 (Yonahama F., PL2); 8: MPC-25962 from sample MK02B (Minebari F., PL5); 9: MPC-25963 from sample 1-2 (Minebari F., PL5). Specimen of 9 has aberrant sac-like last chamber. 10—12. Globigerinoides sacculifer (Brady), 10: MPC-25964 and 11: MPC-25965 from sample MK01 (Yonahama F., PL2); 12: MPC-25966 from sample MK02A (Minebari F., PL5). Specimen of 10, young form assignable to G. immatura LeRoy; Specimen of 12 preserves sac-like last chamber.