Kamptner (1943: 45)
Coccospheres 6–10 μm, often in clusters. Coccoliths large, 3.5–6 μm, with bridge at a high angle to the long axis; collar around central opening of distal shield.
64º56'S 150º12'E Nishida (1986)65º00'S 117º59'E Nishida (1986)
A Gephyrocapsa species with an elevated bridge of two high, paddle-like plates has been reported (Nishida, 1979; Heimdal & Gaarder, 1981; Kleijne, 1993). It is not clear at this stage if this is a malformation, a distinct morphotype or a different species.