Lenticulina orbicularis (d'Orbigny)

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 : 30

Lenticulina orbicularis (d'Orbigny)

Figures 11.8, 11.9

1826 Robulina orbicularis d’Orbigny , p. 288, pl. 15, figs. 8, 9.

1913 Cristellaria orbicularis (d’Orbigny) — Cushman, p. 67, pl. 36, figs. 4, 5.

1938 Robulus orbicularis d’Orbigny — Asano (a), p. 204, pl. 26, figs. 14, 18.

1941 Robulus orbicularis (d’Orbigny) — LeRoy (Part 1), p. 23, pl. 2, figs. 13, 14.

1944 Robulus orbicularis (d’Orbigny) — LeRoy (Part 1), p. 17, pl. 4, figs. 15, 16.

1956 Robulus orbicularis d’Orbigny — Asano (a), pp. 49, 50, pl. 1, figs. 19—21.

1990 Robulus orbicularis d’Orbigny — Akimoto, p. 210, pl. 22, fig. 1.

1994 Lenticulina orbicularis (d’Orbigny) — Jones, p. 81, pl. 69, fig. 17.

Occurrence. Sporadic in the Yonahama and Minebari formations.

Figures

FIGURE 11. Family Vaginulinidae. All scale bars = 0.1mm, unless otherwise indicated. 1, 2. Lenticulina cultrata (de Montfort), 1: MPC-26352 from sample 2 (Minebari Formation, PL5); 2: MPC-26353 from sample MK02A-2 (Minebari F., PL5). 3, 4. Lenticulina depressa (Asano), 3: MPC-26354 from sample 11 (Onogoshi F.,?PL1); last three chambers show aberrant inflation; 4: MPC-26355 from sample 18 (Oura F.,?PL1) broken specimen. 5, 6. Lenticulina inornata (d'Orbigny), 5: MPC-26356 from sample 3-2-up-sand (Onogoshi F., PL1); 6: MPC-26357 from sample MK02B (Minebari F., PL5). 7. Lenticulina iota (Cushman), MPC-26358 from sample 3-2-up-sand (Onogoshi F., PL1). 8, 9. Lenticulina orbicularis (d'Orbigny), 8: MPC-26359 from sample 6 (Yonahama F., PL2); 9: MPC-26360 from sample MK01 (Yonahama F., PL2). 10, 11. Lenticulina sintikuensis Nakamura, 10: MPC-26361, 11: MPC-26362, both from sample 6-2 (Yonahama F., PL2). 12. Lenticulina thalmanni (Hessland), MPC-26363 from sample 2-2 (Minebari F., PL5). 13, 14. Lenticulina vortex (Fichtel and Moll), 13: MPC-26364 from sample 2-2 (Minebari F., PL5); 14: MPC-26365 from sample MK02A-2 (Minebari F., PL5); 13, broken specimen. 15. Marginulinopsis striatulus (Cushman), MPC-26369 from sample 4 (Minebari F., PL5). 16, 17. Neolenticulina variabilis (Reuss), 16: MPC-26389 from sample 1-2 (Minebari F., PL5); 17: MPC-26390 from sample 18 (Oura F.,?PL1).