Siphonina australis Cushman, 1927

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 : 99

Siphonina australis Cushman

Figures 29.20, 29.21

1927 Siphonina australis Cushman (b), p. 8, pl. 2, fig. 6, pl. 3, fig. 7.

1941 Siphonina australis Cushman — LeRoy (Part 1), p. 41, pl. 2, figs. 88—90; LeRoy (Part 2), p. 84, pl. 4, figs. 10—12.

1941 Siphonina australis Cushman — LeRoy (Part 2), p. 89, pl. 4, figs. 1—3.

1964 Siphonina bradyana Cushman — LeRoy, p. F39, pl. 4, figs. 5, 6 (non Siphonina bradyana Cushman, 1927b ).

1988 Siphonina bradyana Cushman — Wang, Zhang, Zhao, Min, Bian, Zheng, Cheng, and Chen, p. 161, pl. 24, fig. 13; Marle, p. 149, pl. 2, fig. 13.

1994 Siphonina bradyana Cushman — Loeblich and Tappan, p. 143, pl. 298, figs. 1—9.

1998 Siphonina bradyana Cushman — Hess, p. 90, pl. 14, figs. 5, 6.

Remarks. Siphonina bradyana Cushman (1927b) has a shorter neck and more fimbriate and broader keel than S. australis .

Occurrence. Rare in the Oura, Yonahama, and Minebari formations.

Figures

FIGURE 29. Family Discorbidae, Rosalinidae, Sphaeroidinidae, Glabratellidae, Siphonidae, and Parrelloididae. All scale bars = 0.1mm. 1, 2. Rotorbis auberi (d'Orbigny), 1: MPC-26470 from sample 4 (Minebari Formation, PL5); 2: MPC-26471 from sample 12 (Minebari F., PL5). 3, 4. Neoeponides bradyi Le Calvez, 3: MPC-26387 from sample 2-2 (Minebari F., PL5); 4: MPC-26388 from sample 6-2 (Yonahama F., PL2). 5. Strebloides advenus (Cushman), MPC- 26512 from sample 8-2 (Yonahama F., PL4). 6, 7. Gavelinopsis lobatulus (Parr), 6: MPC-26275 from sample 15 (Yonahama F., PL3); 7: MPC-26276 from sample MK01 (Yonahama F., PL2). 8, 9. Gavelinopsis praegeri (Heron-Allen and Earland), 8: MPC-26277 from sample 11 (Onogoshi F.,?PL1); 9: MPC-26278 from sample 18 (Oura F.,?PL1). 10, 11. Planodiscorbis rarescens (Brady), 10: MPC-26411 from sample 2 (Minebari F., PL5); 11: MPC-26412 from sample 3-2- up-sand (Onogoshi F., PL1). 12. Rosalina australis (Parr), MPC-26463 from sample MK01 (Yonahama F., PL2). 13, 14. Rosalina globularis d'Orbigny, 13: MPC-26464 from sample 5-2 (Minebari F., PL5); 14: MPC-26465 from sample MK01 (Yonahama F., PL2). 15, 16. Sphaeroidina bulloides d'Orbigny, 15: MPC-26505 from sample 3-2-low-silt (Onogoshi F., PL1); 16: MPC-26506 from sample MK01 (Yonahama F., PL2). 17, 18. Murrayinella globosa (Millett), 17: MPC-26380 from sample 1 (Minebari F., PL5); 18: MPC-26381 from sample 14-2 (Yonahama F., PL4). 19. Planoglabratella opercularis (d'Orbigny), MPC-26413 from sample MK02B (Minebari F., PL5), juvenile specimen. 20, 21. Siphonina australis Cushman, 20: MPC-26493 from sample 15 (Yonahama F., PL3); 21: MPC-26494 from sample MK01 (Yonahama F., PL2). 22—24. Cibicidoides ornatus (Cushman), 22: MPC-26200 from sample 6 (Yonahama F., PL2); 23: MPC-26201 from sample MK01 (Yonahama F., PL2); 24: MPC-26202 from sample 4-2 (Minebari F., PL5).