Figure F21. Calcareous nannofossils. Scale bars = 2 µm. 1. Helicosphaera carteri (Sample 346-U1429A-5H-CC). 2. Helicosphaera wallichii (Sample 346-U1428A-1H-CC). 3. Helicosphaera inversa (Sample 346-U1428A-14H-CC). 4. Rhabdosphaera clavigera (Sample 346-U1429A-1H-CC). 5. Ceratolithus cristatus (Sample 346-U1428A-5H-CC). 6. Coccolithus pelagicus (Sample 346-U1429A-1H-CC). 7. Emiliania huxleyi (Sample 346-U1429A-1H-CC). 8. Calciosolenia murrayi (Sample 346-U1429A-5H-CC). 9. Oolithotus fragilis (Sample 346-U1429A-7H-CC). 10. Umbilicosphaera sibogae (Sample 346-U1429A-7H-CC). 11. Syracosphaera spp. (Sample 346-U1429A-5H-CC). 12, 13. Small Gephyrocapsa (<4 µm) (Sample 346-U1429A-5H-CC). 14. Gephyrocapsa caribbeanica (Sample 346-U1428A-14H-CC). 15, 16. Gephyrocapsa oceanica (Sample 346-U1429A-1H-CC). Photos were taken using the light microscope (cross-polarized light) at 1000× magnification.
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