Cribrocentrum foveolatum (Fig 1) together with its synonyms/variations Cribrocentrum alabamensis (Fig 2) and Cribrocentrum insignita (Fig 3)
Coccolithus foveolatus Reinhardt, 1966a
Reticulofenestra insignita Roth & Hay in Hay et al., 1967 [3.7µm; Oligocene, a ring of elongate pores]
Reticulofenestra alabamensis Roth, 1970 [3.2µm; Oligocene, a ring of elongate pores]
Length: 3.0µm
Small (<5.0µm) species of Cribrocentrum having a central area with a single cycle of large elongate pores & a perforated central field.
Hay, W. W., Mohler, H. P., Roth, P. H., Schmidt, R. R., Boudreaux, J. E., 1967. Calcareous nannoplankton zonation of the Cenozoic of the Gulf Coast and Caribbean-Antillean area, and transoceanic correlation. - Transactions of the Gulf-Coast Association of Geological Societies 17, 428-480.
Perch-Nielsen, K., 1971c. Elektronenmikroskopische untersuchungen an Coccolithen und verwandten Formen aus dem Eozan von Danemark. Biologiske Skrifter, Kongelige Danske Videnskabernes Selskab. 18(3), 1-76.
Reinhardt, P., 1966a. Fossile Vertreter coronoider und styloider Coccolithen (Family Coccolithaceae Poche 1913). Monatsberichte der Deutschen Akademie der Wissenschaften zu Berlin 8, 513-524.
Roth, P. H., 1970. Oligocene calcareous nannoplankton biostratigraphy. Eclogae Geologicae Helvetiae 63, 799-881.
Coccolithus foveolatus
Reinhardt, 1966
Eocene
Doberan 5 Borehole, North Germany