C. pelagicus group


Classification: ntax_cenozoic -> Coccolithales -> Coccolithaceae -> Coccolithus -> C. pelagicus group
Sister taxa: C. pelagicus group, C. formosus group, C. biparteoperculatus group, C. gigas group, C. sp.

Daughter taxa (time control age-window is: 0-800Ma)Granddaughter taxa
Coccolithus crassus
Similar to C. pelagicus but more strongly birefringent and with raised collar on distal surface.

Coccolithus pelagicus
Elliptical placolith coccolith with central area open or spanned by a disjunct bar on the proximal surface.

Coccolithus eopelagicus
Like C. pelagicus but very large (>14 µm).

Coccolithus miopelagicus
Coccoliths very large, 14-20µm, usually 15-17µm, no bar in central area.

Coccolithus latus
Medium to large elliptical Coccolithus with wide (> width of the shields) vacant central area.

Coccolithus bownii
Medium to large broadly elliptical to subcircular Coccolithus with a broad, open, central-area; tube structure simplified.

Coccolithus tenuiforatus
Delicate cross in central area

Taxonomy:

Citation: Coccolithus pelagicus group
Rank: species group

Distinguishing features: Elliptical to sub-circular with central opening-sometimes with bar or delicate cross

Farinacci & Howe catalog pages:

Search data:
TagsLITHS:
MetricsLith size: 4->20┬Ám;
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): Extant Data source: Total of range of species in this database
First occurrence (base): at base of Danian Stage (0% up, 66Ma, in Danian stage). Data source: Total of range of species in this database

Plot of occurrence data:

References:


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C. pelagicus group compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 28-2-2021

Taxon Search:
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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=170 Go to Archive.is to create a permanent copy of this page - citation notes



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