Globigerina foliata Bolli, 1957

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 : 57

Globigerina foliata Bolli

Figures 19.3-19.6

1957 Globigerina foliata Bolli , p. 111, pl. 24, fig. 1.

1959 Globigerina foliata Bolli — Blow, pp. 177, 178, pl. 10, fig. 42.

1968 Globigerina foliata Bolli — Huang, p. 60, pl. 11, figs. 1, 8.

1975 Globigerina parabulloides Blow — Kameyama, pl. 1, fig. 1 (non G. parabulloides Blow, 1959 ).

1977 Globigerina foliata Bolli — Kadar, p. 63, pl. 2, fig. 10.

1978 Globigerina foliata Bolli — Oda, p. 51, pl. 1, fig. 7.

1985 Globigerina foliata Bolli — Ujiié, p. 108, pl. 1, figs. 5—10; Ibaraki, pl. 2, figs. 1, 2.

2003 Globigerina foliata Bolli — Ujiié, p. 43, pl. 1, fig. 9.

2004 Globigerina foliata Bolli — Hanagata, pl. 5, fig. 3.

Remarks. This species is commonly found in the

Pliocene of the Ryukyu Islands, yet has been rarely reported from Japan’s main islands. The compact-

chambered form is distinguished as “var. A” following Ujiié (1985, pl. 1, figs. 9, 10).

Occurrence. Common to abundant in all the formations of the present study.

Figures

FIGURE 19. Family Globigerinidae. All scale bars = 0.1mm. 1, 2. Globigerina falconensis Blow, 1: MPC-25938 from sample 1 (Minebari Formation, PL5); 2: MPC-25939 from sample MK02B (Minebari F., PL5). 3—6. Globigerina foliata Bolli, 3: MPC-25940 from sample MK01 (Yonahama F., PL2); 4: MPC-25941 from sample MK02B (Minebari F., PL5); 5: MPC-25942 from sample 14 (Yonahama F., PL4); 6: MPC-25943 from sample 16 (Yonahama F., PL3). Specimens of 5 and 6 are morphotype distinguished by Ujiié (1985) as G.foliata var.A. 7, 8. Globigerina bulbosa LeRoy, 7: MPC- 25934 from sample 4 (Minebari F., PL5); 8: MPC-25935 from sample 7 (Yonahama F., PL4). 9—11. Globigerinella praecalida Blow, 9: MPC-25944 from sample 4 (Minebari F., PL5); 10: MPC-25945 from sample 8-2 (Yonahama F., PL4); 11: MPC-26544 from sample MK01 (Yonahama F., PL2). Last chamber of specimen of 11 lacks last chamber. 12, 13. Globigerinella pseudobesa (Salvatorini), 12: MPC-25941 from sample 5 (Minebari F., PL5); 13: MPC-25947 from sample 11 (Onogoshi F.,?PL1). Specimen of 13 shows a young stage of the species. 14, 15. Globigerinella siphonifera (d'Orbigny), 14: MPC-25948 from sample 1 (Minebari F., PL5); 15: MPC-25949 from sample 13 (Minebari F., PL5).