Plate P3. Specimens from Sample 199-1220A-7H-5, 60-61 cm. Scale bar = 10 µm. 1, 2. Cestodiscus trochus Castracane with marginal labiate processes. 3, 4. Cestodiscus robustus Jousé, high and low focus of the same specimen. 5. Azpeitia oligocenica Jousé. 6. Cestodiscus reticulatus Fenner. 7. Cestodiscus trochus Castracane, with the margin broken off.

Plate P3. Specimens from Sample 199-1220A-7H-5, 60–61 cm. Scale bar = 10 µm. 1, 2. Cestodiscus trochus Castracane with marginal labiate processes. 3, 4. Cestodiscus robustus Jousé, high and low focus of the same specimen. 5. Azpeitia oligocenica Jousé. 6. Cestodiscus reticulatus Fenner. 7. Cestodiscus trochus Castracane, with the margin broken off.