Hemiaulus peripterus Fenner (1984)
Comment: A large specimen with parts of the polar elevations missing.
Locality: Ocean Drilling Program Hole 1050A (Blake Nose, western North Atlantic), sample: 171B-1050A-30X-1, 100-101 cm (late Paleocene).
Photographed using: Zeiss Axio.A1, EC Plan-NEOFLUAR 40×/0.75 + Zeiss AxioCam ICc 5. Single image.
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