Hemiaulus incurvus Schibkova in Krotov & Schibkova (1959)
Comment: Well-preserved valve with prominent linking spines.
Locality: Deep Sea Drilling Project Hole 327A (Maurice Ewing Bank, south Atlantic), sample: 36-327A-5R-1, 45-46 cm (late Paleocene).
Photographed using: Zeiss Axio.A1, EC Plan-NEOFLUAR 40×/0.75 + Zeiss AxioCam ICc 5. Stacked using Picolay.
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