Auliscus propinquus Grove & Sturt (1887)
Comment: Small valve with a well-preserved ring of spinules along the valve margin. The elevated part of the valve face is pierced by fine perforations, occasionally interrupted by ridges and spinules.
Locality:
Cormack's Siding, Oamaru, New Zealand, sample: Cormack's Siding (Eocene-Oligocene Transition).
Photographed using: Zeiss Axio.A1, Plan-APOCHROMAT 100×/1.4 Oil DIC + Zeiss AxioCam ICc 5. Stacked using Helicon Focus.
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