Conicospirillinoides

Mamo, Briony L., 2016, Benthic Foraminifera from the Capricorn Group, Great Barrier Reef, Australia, Zootaxa 4215 (1), pp. 1-123 : 70

Conicospirillinoides sp. 1 ( Fig. 16 :13, 14)

Remarks. This taxon has a low conical test with trochospiral coiling, a truncated apex, flattened base and compressed chambers. Each whorl partially overlaps the preceeding whorl and the innermost obscures the central umbilical area of the test. The whorls wrap on an angle giving a flat-topped conical profile with a thickened carinate periphery ( Fig. 16 :13, 14). Although these features are congeneric with Conicospirillinoides , all the CG specimens are damaged, particularly at the apex and periphery, making precise identification difficult.

Distribution within study area. Specimens of Conicospirillinoides sp. 1 were collected in low numbers from One Tree Lagoons 1 and 2.

Figures

FIGURE 16. (Unless otherwise specified all scale bars = 100 µm). 1 – 8. Marginopora vertebralis Quoy & Gaimard, 1830. 1. QM # G 466020 from T 1 – 2, close-up oral view. Scale bar = 500 µm. 2 – 4. QM # G 465967 from OTI 48, lateral (2), oral (3) and peripheral (4) views. Scale bar for 2 = 200 µm. 5 – 8. QM # G 465961 from T 1 – 2. 5. Lateral view showing internal structure, scale bar = 500 µm. 6. Oral view, scale bar = 500 µm. 7. Close-up oral view. 8. Close – up oral view, scale bar = 10 µm. 9 – 12. Sorites orbiculus Forskål, 1775. 9 – 10. QM # G 466115 from ST / HW 4, lateral (9) and oral (10) views. 11 – 12. QM # G 465936 from HL 37, lateral (11) and close-up oral (12) views. Scale bar for 18 = 200 µm. 13 – 14. Conicospirillinoides sp. 1, QM # G 465963 from OTI 51. Scale bar = 50 µm. 13. Apical view. 14. Peripheral view. 15. Planispirillina inaequalis Brady, 1879, QM # G 465942 from OTI 12. Ventral view. 16 – 20. Planispirillina spinigera (Chapman, 1900). 16 – 17. QM # G 465962 from OTI 20, dorsal (16) and peripheral (17) views. 18 – 20. QM # G 465968 from OTI 51, dorsal (18), peripheral (19) and ventral lateral (20) views. Scale bar for 19 = 50 µm.