Neogloboquadrina blowi (Rögl and Bolli)

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 : 48

Neogloboquadrina blowi (Rögl and Bolli)

Figures 17.3, 17.4

1969 Globorotalia (Turborotalia) subcretacea (Lomnicki) — Blow, p. 392, pl. 4, figs. 10— 20 (non Globigerina subcretacea Lomnicki, 1901 ).

1973 Neogloboquadrina dutertrei (d’Orbigny) blowi Rögl and Bolli , p. 570, pl. 9, figs. 15—21, pl. 17, fig. 12.

1981 Neogloboquadrina blowi Rögl and Bolli — Saito, Thompson, and Breger, p. 114, pl. 37, fig. 1.

1985 Neogloboquadrina blowi Rögl and Bolli — Ibaraki, p. 136, pl. 12, figs. 6, 7.

1985 Neogloboquadrina dutertrei blowi Rögl and Bolli — Bolli and Saunders, p. 212, figs. 27.5, 28.9.

1994 Neogloboquadrina blowi Rögl and Bolli — Jones, p. 91, pl. 82, fig. 10; Loeblich and Tappan, p. 102, figs. 7—10.

Remarks. This species is distinguished from its descendant, Neogloboquadrina dutertrei , in having a lower trochospiral and extra-umbilical aperture similar to that of Neogloboquadrina acostaensis .

Occurrence. Sporadic in the Oura, Onogoshi, and Yonahama formations.

Figures

FIGURE 17. Family Globorotaliidae and Pulleniatinidae. All scale bars = 0.1mm. 1, 2. Neogloboquadrina acostaensis (Blow), 1: MPC-25996 from sample MK01 (Yonahama Formation, PL2); 2: MPC-25997 from sample MK02B (Minebari F., PL5). 3, 4. Neogloboquadrina blowi (Rögl and Bolli), 3: MPC-25998 from sample 6 (Yonahama F., PL2); 4: MPC- 25999 from sample 6-2 (Yonahama F., Yonahama F., PL2). 5, 6. Neogloboquadrina humerosa (Takayanagi and Saito), 5: MPC-26000 from sample 15 (Yonahama F., PL3); 6: MPC-26001 from sample MK02A (Minebari F., PL5). 7—14. Neogloboquadrina incompta (Cifelli), 7: MPC-26002 from sample 14-2 (Yonahama F., PL4); 8: MPC-26003 from sample 16 (Yonahama F., PL3); 9: MPC-26004 from sample 3-2-low-silt (Onogoshi F., PL1); 10: MPC-26005 from sample 10 (Onogoshi F., PL2); 11: MPC-26006 from sample 15 (Yonahama F., PL3); 12: MPC-26007 from sample MK01 (Yonahama F., PL2); 13: MPC-26008 from sample 6-2 (Yonahama F., PL2); 14: MPC-26009 from sample 3- 2-up-sand (Onogoshi F., PL1). Specimens of 8—10, right coiling (dextral) form; 11—14, left coiling (sinistral) form. 15—17. Neogloboquadrina pseudopachyderma (Cita, Premoli-Silva, and Rossi), 15: MPC-26010 from sample 12 (Minebari F., PL5); 16: MPC-26011 from sample MK01 (Yonahama F., PL2); 17: MPC-26012 from sample 2-2 (Minebari F., PL5). 15 and 16, right coiling (dextral) form; 17, left coiling (sinistral) form. 18, 19. Neogloboquadrina praehumerosa (Natori), 18: MPC-26013 from sample MK01 (Yonahama F., PL2); 19: MPC-26014 from sample MK02B (Minebari F., PL5). 20, 21. Pulleniatina obliquiloculata (Parker and Jones), 20: MPC-26018 from sample 17 (Yonahama F., PL2); 21: MPC-26019 from sample 5 (Minebari F., PL5). 20, left coiling (sinistral) form; 21, right coiling (dextral) form.