Globigerinella praecalida (Blow)

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

Globigerinella praecalida (Blow)

Figures 19.9-19.11

1969 Globigerina calida praecalida Blow , p. 380, pl. 13, figs. 6, 7, pl. 14, fig. 3.

1974 Globigerina calida praecalida Blow — Ujiié and Ōki, pl. 1, figs. 1, 2.

1985 Globigerina calida praecalida Blow — Ibaraki, pp. 106, 107, pl. 1, figs. 7, 8.

1985 Globigerina praecalida Blow — Ujiié, p. 108, pl. 1, fig. 13, pl. 2, fig. 1.

Remarks. We regard the genus Bolliella Banner and Blow (1959) as a junior synonym of Globigerinella .

Occurrence. Sporadic in the Minebari and Yonahama formations.

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).