Fissurina

Mamo, Briony L., 2016, Benthic Foraminifera from the Capricorn Group, Great Barrier Reef, Australia, Zootaxa 4215 (1), pp. 1-123 : 74

Fissurina sp. 1 ( Fig. 17 :16–18)

Description. Test small, rounded, widest point at centre of test. Oral end compressed, produced as a terminal, slitlike aperture. Test wall ornamented by strong, longitudinally radiating costae. Two costae extend from either end of aperture to form a carinate periphery around the entire test.

Remarks. This species was assigned to Fissurina due to its symmetrically slit-like aperture and rounded test shape ( Fig. 17 :16–18). The radial ornament is similar to Fissurina pulchella (Brady 1870) and the CG taxon may be a juvenile form of this species. A lack of material precludes a specific taxonomic assignment.

Distribution within study area. This species was found at site 8 in One Tree Lagoon 1.

Figures

FIGURE 17. (Unless otherwise specified all scale bars = 100 µm). 1 – 2. Spirillina sp. 1, QM # G 465974 from OTI 51. 1. Side view. 2. Oral view, scale bar = 50 µm. 3 – 5. Seguenzaella lacunata (Burrows & Holland, 1895), QM # G 465949 from OTI 47. Scale bar = 50 µm 3. Lateral view. 4. Peripheral view. 5. Oral view. 6 – 7. Guttulina cf. G. bartschi Cushman & Ozawa, 1930, QM # G 465998 from CHANNEL, Scale bar = 50 µm. 6. Lateral view. 7. Oral views. 8 – 9. Guttulina sp. 1, QM # G 466080 from CHANNEL. 8. Lateral view, scale bar = 200 µm. 9. Oral view. 10 – 11. Sigmoidella elegantissima (Parker & Jones, 1870), QM # G 465875 from CHANNEL. 10. Lateral view. 11. Oral view. 12 – 13. Webbinella? sp. 1, QM # G 465895 from ST 10. 12. Lateral view. 13. Peripheral view. 14 – 15. Fissurina bispinata Ujiié, 1963, QM # G 466136 from OTI 47. Scale bar = 20 µm. 14. Lateral view. 15. Oral view. 16 – 18. Fissurina sp. 1, QM # G 465934 from OTI 8. 16. Peripheral view, scale bar = 50 µm. 17. Oral view, scale bar = 50 µm. 18. Underside view, scale bar = 20 µm. 19 – 20. Saintclaroides marlysae McCulloch, 1981, QM # G 465923 from WL 2. 19. Spiral view. 20. Peripheral view.