Rocella vigilans Fenner (1984)
Comment: Medium-sized valve. Note the double process typical of this species, faintly visible to the upper left from the valve face center.
Locality: Ocean Drilling Program Hole 959A (Côte d'Ivoire-Ghana Marginal Ridge, eastern tropical Atlantic), sample: 159-959A-41X-5, 112-114 cm (late Oligocene).
Photographed using: Zeiss Axio.A1, Plan-APOCHROMAT 100×/1.4 Oil DIC + Zeiss AxioCam ICc 5. Single image.
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