Chiphragmalithus calathus


Classification: ntax_cenozoic -> Zygodiscales -> Zygodiscaceae -> Chiphragmalithus -> Chiphragmalithus calathus
Sister taxa: C. acanthodes, C. armatus, C. barbatus, C. calathus, C. muzylevii, C. vandenberghei, C. sp.

Taxonomy:

Citation: Chiphragmalithus calathus Bramlette & Sullivan 1961
Rank: Species

Distinguishing features: Sub-circular to broadly-elliptical, with elevated rim

Farinacci & Howe catalog pages: C. calathus *


Morphology: Intergrades with C. acanthodes but can usefully be separated (Bown & Newsam 2017)

Search data:
TagsLITHS: murolith, circular, elliptical, quadrate, hollow, CA: diagonal cross, CROSS-POLARS: rim-unicyclic, V-prominent,
MetricsLith size: 6->9µm;
Data source notes: lith size from OD & illustrated specimens
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within NP14 zone (46.29-49.11Ma, top in Lutetian stage). Data source: Bown & Newsam 2017
First occurrence (base): within NP12 zone (50.50-53.70Ma, base in Ypresian stage). Data source: Bown & Newsam 2017

Plot of occurrence data:

References:

Bown, P. R. & Newsam, C. (2017). Calcareous nannofossils from the Eocene North Atlantic Ocean (IODP Expedition 342 Sites U1403–1411). Journal of Nannoplankton Research. 37(1): 25-60. gs V O

Bramlette, M. N. & Sullivan, F. R. (1961). Coccolithophorids and related nannoplankton of the Early Tertiary in California. Micropaleontology. 7(2): 129-188. gs

Perch-Nielsen, K. (1971c). Elektronenmikroskopische untersuchungen an Coccolithen und verwandten Formen aus dem Eozan von Danemark. Biologiske Skrifter, Kongelige Danske Videnskabernes Selskab. 18(3): 1-76. gs

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Chiphragmalithus calathus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 8-3-2021

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=285 Go to Archive.is to create a permanent copy of this page - citation notes
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