Braarudosphaera pentagonica


Classification: Coccolithophores -> Braarudosphaerales -> Braarudosphaeraceae -> Braarudosphaera -> Braarudosphaera pentagonica
Sister taxa: B. bigelowii, B. insecta, B. magnei, B. pentagonica, B. perampla, B. perversus, B. sequela, B. stylifera, B. sp.,

Distinguishing features: Braarudosphaera with 5-sided segments


Taxonomy:

Citation: Braarudosphaera pentagonica Mai et al. 1997
Rank: Species

Farinacci & Howe catalog pages: Braarudosphaera pentagonica *

Distinguishing features: Braarudosphaera with 5-sided segments


Morphology remarks: Coccosphere is still a regular dodecahedron but sutures are zigzag shaped.

Search data:
TagsLITHS: nannolith-radiate, pentagonal,
CSPH: spherical, monomorphic, T-UNITS: all,
MetricsLith size: 7->10µm; Segments: 5->5; Coccosphere size: 14->20µm; Liths per sphere: 12->12
Sources: lith size (diameter) from OD and slightly extended; lith numbers assumed from geometry; csph size calculated from lith size
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Notes: Described from sediments immediately above the K/Pg boundary in shelf sediments from the Netherlands, but way well obe found in older sediments if preservation is suitable
Last occurrence (top): within NP1 zone (65.47-66.04Ma, top in Danian stage). Data source: original description
First occurrence (base): within NP1 zone (65.47-66.04Ma, base in Danian stage). Data source: original description

Plot of occurrence data:

  • (NB There is no histogram as there are no occurrence records for the taxon in the Neptune database) Parent: Braarudosphaera

    References:

    Mai, H., Willems, H. & von Salis Perch-Nielsen, K. (1997b). Braarudosphaera pentagonica n.sp., a new Braarudosphaera from the lowermost Tertiary of Geulhemmerberg (Geulhem, The Netherlands). Micropaleontology. 43(2): 202-205. gs


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    Braarudosphaera pentagonica compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 26-6-2019

    Taxon Search:
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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=149 Go to Archive.is to create a permanent copy of this page - citation notes



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