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Authority

Caarder & Ramsfjell 1954

Order

Coccolithophorales

Class

Syracosphaerales

 

Family

Syracosphaeraceae

Additional References

N/A

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Synonyms

N/A

Basionym

N/A

Description

BCs 2–4 μm; distal shield flange broad, variably ornamented, usually heavily ribbed, sometimes with teeth protruding into the central area. Central area an irregular ridge and/or ring formed by upward growth of laths. CFCs with a prominent spine, smaller and less calcified than BCs, with narrower flanges. A single AAC usually present, similar to the BCs but with a stubby spine. XCs large; flange ribbed on distal side, expanding clockwise into wing (directed apically) c. twice as wide as the rest of the flange.

Several morphotypes can be recognised by their ornamentation.

Distribution

Southern Ocean, south of Tasmania.

Comments

BCs 2–4 μm; distal shield flange broad, variably ornamented, usually heavily ribbed, sometimes with teeth protruding into the central area. Central area an irregular ridge and/or ring formed by upward growth of laths. CFCs with a prominent spine, smaller and less calcified than BCs, with narrower flanges. A single AAC usually present, similar to the BCs but with a stubby spine. XCs large; flange ribbed on distal side, expanding clockwise into wing (directed apically) c. twice as wide as the rest of the flange.

Several morphotypes can be recognised by their ornamentation.

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