Neogloboquadrina praehumerosa (Natori)

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 : 51-52

Neogloboquadrina praehumerosa (Natori)

Figures 17.18, 17.19

1962 Globorotalia humerosa Takayanagi and Saito , p. 78, pl. 28, fig. 2 (only).

1976 Globorotalia (Turborotalia) humerosa praehumerosa Natori , p. 227, pl. 2, figs. 1, 3.

1977 Globoquadrina dutertrei (d’Orbigny) — Kadar, p. 65, pl. 5, fig. 27 (non Globigerina dutertrei d’Orbigny, 1839a ).

1978 Globorotalia humerosa Takayanagi and Saito — Oda, pp. 57, 58, pl. 5, figs. 4, 5.

1985 Globorotalia acostaensis humerosa Takayanagi and Saito — Ujiié, pp. 111, 112, pl. 11, fig. 2 (non fig. 3).

1985 Neogloboquadrina humerosa praehumerosa (Natori) — Bolli and Saunders, p. 211, figs. 27.9, 28.14.

2004 Neogloboquadrina praehumerosa (Natori) — Hanagata, pl. 2, fig. 6.

Remarks. This species is distinguished from Neogloboquadrina humerosa in having fewer chambers, five to five and a half, in the last whorl, rather than six.

Occurrence. Common in the Yonahama and Minebari 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.