Cribrocentrum retiformis (Fig 1) together with its synonyms/variations Cribrocentrum hampdenensis (Fig 2), Cribrocentrum pseudoscissura (Fig 3) and Cribrocentrum daviesii (Fig 4)
Coccolithus? retiformis Reinhardt, 1966a
Stradnerius daviesii Haq, 1968 [Holotype: 7.6µm, Late Eocene]
Reticulofenestra pseudoscissura Haq, 1971 [Holotype: 7.0µm; Oligocene; a ring of elongate pores]
Reticulofenestra hampdenensis Edwards, 1973 [Holotype: 6.0µm; Late Eocene; a ring of elongate pores]
Length: 8.3µm
Medium to Large (5.0-12.0µm) species of Cribrocentrum have a central area with a single cycle of larger pores and a finely perforated central field
Edwards, A. R., 1973. Key species of New Zealand calcareous nannofossils. New Zealand Journal of Geology and Geophysics 16, 68-89.
Haq, B. U., 1968. Studies on upper Eocene calcareous nannoplankton from NW Germany. Stockholm Contributions in Geology 18, 13-74.
Haq, B. U., 1971. Paleogene calcareous nannoflora. Parts I-IV. Stockholm Contributions in Geology 25, 1-158.
Reinhardt, P., 1966a. Fossile Vertreter coronoider und styloider Coccolithen (Family Coccolithaceae Poche 1913). Monatsberichte der Deutschen Akademie der Wissenschaften zu Berlin 8, 513-524.
Coccolithus? retiformis
Reinhardt, 1966
Eocene
Doberan 5 Borehole, North Germany