A&B = Cell in two focal planes; C = Squashed coccosphere; D&E = Squashed cell in two focal depth (observe two flagella and coccoliths with one or two central knobs in E). A-E (DIC); F = Eroded coccoliths in a collapsed coccosphere. (SEM)
Life-form: Solitary motile
Size: Diameter=11-19 µm, coccolithlength 1.9-3.4 µm
Distinctive features: Laminoliths with four to eight pores surrounding an elevated central structure, which is terminated of one or two distal knobs
Similar species: Calyptrolithina multipora
Distribution: Norwegian Sea, North Atlantic, Skagerrak, Mediterranean, Pacific Ocean
Halldal, P. & Markali, J. 1955. Electron microscope studies on Coccolithophorids from the Norwegian Sea, the Gulf Stream and the Mediterranean. Norske Vidensk.-Akad.Mat.-Nat. 1: 1-30.
Heimdal, B. R. 1993. Modern Coccolithophorids. In: Tomas, C. R. (ed.) Marine Phytoplankton: a guide to naked flagellates and coccolithophorids. p. 147-247.
Heimdal, B. & Gaarder, K. 1980 . Coccolithophorids from the northern part of the eastern central Atlantic. I. Holococcolithophorids. "Meteor" Forsch.-Ergebnisse. 32: 1-14.