Campylosphaera


Classification: Coccolithophores -> Coccolithales -> Coccolithaceae -> Campylosphaera
Sister taxa: Coccolithus, Bramletteius, Campylosphaera, Chiasmolithus, Coronocyclus, Cruciplacolithus, Ericsonia, Solidopons, Birkelundia, Clausicoccus, Craticullithus, Hughesius, Kilwalithus,

Daughter taxa: (blue => in age window 0-800Ma)
Narrow rimmed, arched placoliths with axial cross-bars.
Medium to large, elliptical to oblong Campylosphaera with a relatively narrow central area filled with broad cross-bars.
Similar to C. dela but with narrow central areas largely filled by the axial cross
Small to medium (~4-6 µm), Campylosphaera-like, broadly elliptical placolith (dark shields in XPL), with a very narrow central area filled with broad cross-bars.
Specimens which cannot be assigned to any established species

Taxonomy:

Citation: Campylosphaera Kamptner, 1963
Rank: Genus
Type species: Campylosphaera bramlettei Kamptner, 1963 Junior synonym ofCampylosphaera dela (Bramlette & Sullivan, 1961) Hay & Mohler, 1967

Distinguishing features: Like Cruciplacolithus but the coccoliths are longitudinally arched and typically near parallel sided, and so appear oblong in outline

Farinacci & Howe catalog pages: Campylosphaera *

Search data:
TagsLITHS: placolith, elliptical, CA: cross-axial, ca_disjunct,
CSPH: equant, monomorphic, CROSS-POLARS: rim-bicyclic, V-prominent, R-prominent,
MetricsLith size: 4->10µm;
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): near base of Priabonian Stage (11% up, 37.3Ma, in Priabonian stage). Data source: Total of range of species in this database
First occurrence (base): near top of Selandian Stage (87% up, 59.5Ma, in Selandian stage). Data source: Total of range of species in this database

Plot of occurrence data:

References:

Kamptner, E. (1963). Coccolithineen-Skelettreste aus Tiefseeablagerungen des Pazifischen Ozeans. Annalen des Naturhistorischen Museums in Wien. 66: 139-204. gs V O


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Campylosphaera compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 29-9-2020

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Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=225 Go to Archive.is to create a permanent copy of this page - citation notes



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