|Daughter taxa (time control age-window is: 0-800Ma)||Granddaughter taxa|
Similar to C. pelagicus but more strongly birefringent and with raised collar on distal surface.
Elliptical placolith coccolith with central area open or spanned by a disjunct bar on the proximal surface.
C. pelagicus subsp. braarudii
C. pelagicus subsp. pelagicus
C. pelagicus with bar
C. pelagicus subsp. floralis
Like C. pelagicus but very large (>14 µm).
Coccoliths very large, 14-20µm, usually 15-17µm, no bar in central area.
Medium to large elliptical Coccolithus with wide (> width of the shields) vacant central area.
Medium to large broadly elliptical to subcircular Coccolithus with a broad, open, central-area; tube structure simplified.
Delicate cross in central area
Distinguishing features: Elliptical to sub-circular with central opening-sometimes with bar or delicate cross
Farinacci & Howe catalog pages:Search data:
|Metrics||Lith size: 4->20µm;|
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:
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