Gladius antiquus Forti & Schulz (1932)
Comment: Partly broken valve (lower part of the mantle missing).
Locality: Ocean Drilling Program Hole 693B (Weddell Sea, south Atlantic), sample: 113-693B-19X-4, 77-78 cm (Early Cretaceous).
Photographed using: Zeiss Axio.A1, Plan-APOCHROMAT 100×/1.4 Oil DIC + Zeiss AxioCam ICc 5. Stacked using Helicon Focus.
Direct link to this page: https://fossil-diatoms.com/atlas/entry/19