Chiphragmalithus barbatus


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

Distinguishing features: Subcircular to square Chiphragmalithus.


Taxonomy:

Citation: Chiphragmalithus barbatus Perch-Nielsen, 1967
Rank: Species
Variants: Chiphragmalithus altinlii Varol (1989) - "distinguished from C. barbatus by having a rim which does not exceed the limit of the wall" the meaning of this sentence is not immediately obvious but possibly indicates that in C. altinii there is no proximal flange, whereas there is one in C. barbatus. Both forms are confined to zone NP12.

Farinacci & Howe catalog pages: Chiphragmalithus altinlii * Chiphragmalithus barbatus *

Distinguishing features: Subcircular to square Chiphragmalithus.

Search data:
TagsLITHS: murolith, sub-circular, RIM: rim-high, outer wall acw-imbricate, rim-edge serrated, spine(s), CA: cross, cross-diagonal-symmetric,
CSPH: not known, V-UNITS: c-str, rim, R-UNITS: none, DETAILS: rim-unicyclic,
MetricsLith size: 6->8µm;
Sources: lith size from ODs
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within NP12 zone (50.50-53.70Ma, top in Ypresian stage). Data source: Perch-Nielsen 1985b
First occurrence (base): within NP11 zone (53.70-54.17Ma, base in Ypresian stage). Data source: Shamrock & Watkins 2012

Plot of occurrence data:

  • Histogram - Neptune occurrence data from DSDP and ODP proceedings. Pale shading <50 samples in time bin. Interpret with caution & read these notes
  • Taxon plotted: Chiphragmalithus barbatus, synonyms included - Chiphragmalithus barbatus; space-time plot :: Samples map :: Parent: Chiphragmalithus

    References:

    Perch-Nielsen, K., (1967). Nannofossilien aus dem Eozan von Danemark. Eclogae Geologicae Helvetiae, 60: 19-32.

    Perch-Nielsen, K., (1985). Cenozoic calcareous nannofossils. In: Bolli, H.M., Saunders, J.B. and Perch-Nielsen, K. (Editors), Plankton Stratigraphy. Cambridge University Press, Cambridge, pp. 427-555.

    Shamrock, J.L. & Watkins, D.K., (2012). Eocene calcareous nannofossil biostratigraphy and community structure from Exmouth Plateau, Eastern Indian Ocean (ODP Site 762). Stratigraphy, 9(1): 1-11.

    Varol, O., (1989). Eocene calcareous nannofossils from Sile (northwest Turkey). Revista Española de Micropaleontología, 21: 273-320.


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    Chiphragmalithus barbatus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 13-12-2018

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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=284Go to Archive.is to create a permanent copy of this page - citation notes



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