Chrysalogonium deceptorium (Schwager)

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 : 25

Chrysalogonium deceptorium (Schwager)

Figure 9.14

1866 Nodosaria deceptoria Schwager , p. 212, pl. 5, fig. 30.

1941 Nodosaria spirostriolata Cushman — LeRoy (Part 2), p. 75, pl. 5, fig. 23 (non Cushman, 1921).

1964 Nodosaria spirostriolata Cushman — LeRoy, p. F24, pl. 15, fig. 13.

1968 Nodosaria spirostriolata Cushman — Huang, p. 58, pl. 13, fig. 21.

2002 Dentalina deceptoria (Schwager) — Hayward, p. 298, pl. 2, figs. 28, 29.

2012 Chrysalogonium deceptorium (Schwager) — Hayward, Kawagata, Sabaa, Grenfell, Kerckhoven, Johnson, and Thomas, pp. 118, 119, pl. 4, figs. 9—16.

Remarks. This species has approximately 20

raised longitudinal striations, whereas Nodosaria spirostriolata Cushman has numerous (up to 40-

50) fine longitudinal striations.

Occurrence. A single specimen from the Minebari

Formation.

Figures

FIGURE 9. Family Hauerinidae and Nodosariidae. All scale bars = 0.1mm, unless otherwise indicated. 1. Pyrgo subsphaerica (d'Orbigny), MPC-26087 from sample 6-2 (Yonahama Formation, PL2). 2. Pyrgo simplex (d'Orbigny), MPC-26086 from sample MK02B (Minebari F., PL5). 3. Triloculina tricarinata Parker, Jones, and Brady (young form), MPC-26104 from sample 1 (Minebari F., PL5). 4. Sigmoilina cf. sigmoidea (Brady), MPC-26097 from sample 6 (Yonahama F., PL2), aperture broken. 5, 6. Spirosigmoilina tenuis (Cžjžek), 5: MPC-26100 from sample 11 (Onogoshi F.,?PL1); 6: MPC-26101 from sample 18 (Oura F., PL1). 7, 8. Spirosigmoilina pusilla (Earland), 7: MPC-26102 from sample 5-2 (Minebari F., PL5); 8: MPC-26103 from sample 11 (Onogoshi F.,?PL1). 9, 10. Sigmoilopsis schlumbergeri (Silvestri), 9: MPC-26098 from sample 18 (Oura F.,?PL1); 10: MPC-26099 from sample MK01 (Yonahama F., PL2). 11. Chrysalogonium equisetiformis (Schwager), MPC-26196 from sample 16 (Yonahama F., PL3). 12, 13. Dentalina albatrossi (Cushman), 12: MPC-26216, 13: MPC-26217, both from sample 2-2 (Minebari F., PL5). 14. Chrysalogonium deceptorium (Schwager), MPC-26195 from sample 2-2 (Minebari F., PL5). 15, 16. Dentalina aff. catenulata (Brady), 15: MPC-26218 from sample 6-2 (Yonahama F., PL2); 16: MPC-26219 from sample 11 (Onogoshi F.,?PL1). 17, 18. Dentalina mutsui Hada, 17: MPC-26220 from sample 18 (Oura F.,?PL1); 18: MPC-26221 from sample MK01 (Yonahama F., PL2). 19. Dentalina sp.A, MPC-26222 from sample 8-2 (Yonahama F., PL4).