Calcidiscus salomonii


Classification: Coccolithophores -> Coccolithales -> Calcidiscaceae -> Calcidiscus -> C. leptoporus group -> Calcidiscus salomonii
Sister taxa: C. gallagheri, C. leptoporus, C. macintyrei, C. pataecus, C. premacintyrei, C. salomonii, C. tropicus,

Taxonomy:

Citation: Calcidiscus salomonii da Gama & Varol 2013
Rank: Species
Notes & discussion: This taxon intergrades with both C. tropicus and U. rotula

Distinguishing features: Calcidiscus species with small coccoliths (3-6µm) with wide central opening (opening width > shield width)

Original description: Diagnosis: Small, strictly circular Calcidiscus whose diameter of the central opening is always greater than the width of the shields.

Description: This small species (3-6μm) has a non-birefringent distal shield, a tube cycle and a birefringent monocyclic proximal shield. The diameter of the central area is always greater than the width of the shield.

Farinacci & Howe catalog pages: Calcidiscus salomonii *

Search data:
TagsLITHS: placolith, circular, CA: vacant,
CSPH: spherical, monomorphic, V-UNITS: distal shield, tube, R-UNITS: prox shield, DETAILS: isogyres oblique, rim-unicyclic,
MetricsLith size: 3->6µm;
Sources:
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within NN11 zone (5.59-8.29Ma, top in Messinian stage). Data source: da Gama & Varol (2013)
First occurrence (base): within NN6 zone (11.90-13.53Ma, base in Serravallian stage). Data source: da Gama & Varol (2013)

Plot of occurrence data:

  • (NB There is no histogram as there are no occurrence records for the taxon in the Neptune database) Parent: C. leptoporus group

    References:

    da Gama, R. O. B. P. & Varol, O. (2012). New Late Oligocene to Miocene Species. Journal of Nannoplankton Research. 33(1): 1-12. gs


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    Calcidiscus salomonii compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 13-11-2019

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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=191 Go to Archive.is to create a permanent copy of this page - citation notes



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