Globorotaloides hexagona (Natland)

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 : 55-56

Globorotaloides hexagona (Natland)

Figures 18.13, 18.14

1938 Globigerina hexagona Natland , p. 149, pl. 7, fig. 1.

1959 Globigerina hexagona Natland — Bradshow, p. 36, figs. 1—15.

1962 Globoquadrina hexagona (Natland) — Parker, p. 244, pl. 8, figs. 5—12 (?13).

1967 Globoquadrina hexagona (Natland) — Parker, p. 169, pl. 25, figs. 9, 10.

1968 Globoquadrina hexagona (Natland) — Huang, p. 61, pl. 11, fig. 12.

1971 Globorotalia (Turborotalia) planispira Brönnimann and Resig , p. 1282, pl. 36, figs. 4, 6, pl. 44, figs. 1, 2, 4, 5, 7, 8, pl. 47, fig. 1.

1974 Globorotalia (Turborotalita) planispira Brönnimann and Resig — Ujiié and Ōki, pl. 3, fig. 1.

1981 Globorotaloides hexagona (Natland) — Saito, Thompson, and Breger, p. 91, pl. 28, figs. 1, 2.

1983 Globoquadrina hexagona (Natland) — Kennett and Srinivasan, p. 216, pl. 54, figs. 1, 3—5.

1985 Globorotaloides variabilis Bolli , var. B — Ujiié, p. 111, pl. 9, figs. 11—13.

1985 Globoquadrina hexagona (Natland) — Ujiié, pl. 10, figs. 1, 2; Ibaraki, p. 119, pl. 5, figs. 8, 9.

1988 Neogloboquadrina hexagona (Natland) — — Wang, Zhang, Zhao, Min, Bian, Zheng, Cheng, and Chen, p. 50, pl. 7, figs. 14— 15.

2003 Globorotaloides hexagona (Natland) — Ujiié, p. 43, pl. 1, fig. 6.

Occurrence. Common in the Yonahama and Minebari formations.

Figures

FIGURE 18. Family Pulleniatinidae, Candeinidae, Catapsydracidae, and Globigerinidae. All scale bars = 0.1mm. 1, 2. Pulleniatina okinawaensis Natori, 1: MPC-26021 from sample 4-2 (Minebari Formation, PL5); 2: MPC-26022 from sample 12 (Minebari F., PL5); both right coiling (dextral) specimens. 3, 4. Pulleniatina praecursor Banner and Blow, 3: MPC-26023, 4: MPC-26024, both from sample 6 (Yonahama F., PL2). 5—7. Globigerinita glutinata (Egger), 5: MPC- 25950 from sample MK01 (Yonahama F., PL2); 6: MPC-25951 and 7: MPC-25952 from sample MK02B (Minebari F., PL5). Specimen of 7 lacks bulla-like cover on the umbilicus. 8, 9. Globigerinita uvula (Ehrenberg), 8: MPC-25953 from sample 10 (Onogoshi F., PL2); 9: MPC-25954 from sample MK01 (Yonahama F., PL2). 10. Candeina nitida d'Orbigny, MPC-25926 from sample 5-2 (Minebari F., PL5). 11, 12. Dentoglobigerina altispira (Cushman and Jarvis), 11: MPC-25932 from sample 10 (Onogoshi F., PL2); 12: MPC-25933 from sample MK01 (Yonahama F., PL2). 13, 14. Globorotaloides hexagona (Natland), 13: MPC-25988 from sample 1 (Minebari F., PL5); 14: MPC-25989 from sample 5 (Minebari F., PL5). 15—18. Alloglobigerinoides conglobatus (Brady), 15: MPC-25925 from sample 12 (Minebari F., PL5); 16: MPC-25926 from sample MK02A (Minebari F., PL5); 17: MPC-25927 from sample 5 (Minebari F., PL5); 18: MPC-25928 from sample 14 (Yonahama F., PL4). 17 and 18, variation final chamber covering umbilicus. 19, 20. Globigerina bulloides d'Orbigny, 19: MPC-25936 from sample MK01 (Yonahama F., PL2); 20: MPC-25937 from sample MK02B (Minebari F., PL5).