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Authority

Murray & Blackman 1898

Order

Coccolithophorales

Class

Syracosphaerales

 

Family

Rhabdosphaeraceae

Additional References

N/A

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Synonyms

R. stylifera Lohmann 1902.

Basionym

N/A

Description

After Young et al. 2003. Spines robust, formed of five clockwise-spiral sets of elements with pentameral terminal papilla. Lith bases elliptical/oblong, 3-3.5 μm. Spine-bearing liths with wider rim than non spine-bearing liths.

Distribution

Southern Ocean, south of Tasmania.

Comments

After Young et al. 2003. Forms with club-shaped and narrower parrel-sided spines are often separated as varieties of R. clavigera. However the two types intergrade and both can be found on single coccospheres, so this is evidently  an example of degree of calcification variation rather than genotypic variation. Hence, taxonomic names should not be used for the different morphotypes, although it may be useful to informally differentiate them for ecological studies.

HOL?= Sphaerocalyptra quadridentata, see Cros & Fortuno (2002)

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