Papposphaera heldalii


Classification: Coccolithophores -> Coccolith families inc sed -> Papposphaeraceae -> Papposphaera -> Papposphaera heldalii
Sister taxa: P. lepida, P. obpyramidalis, P. simplicissima, P. sagittifera, P. sarion, P. arctica, P. iugifera, P. heldalii, P. bourrellii, P. thomsenii, P. sp. type 1, P. sp. type 2, P. sp. type 3, P. sp. type 4, P. sp. type 5, P. sp. type 6, P. sp.,

Taxonomy:

Citation: Papposphaera heldalii Thomsen & Egge 2016
Rank: Species

Distinguishing features: BC central areas open; CFC central areas with axial cross
Process 2-4 µm high with delicate calyx of 4 radially diverging blades.

Farinacci & Howe catalog pages:

Search data:
TagsLITHS: murolith, elliptical, RIM: outer wall non-imbricate, rim-narrow, rim-top crenulate, CA: cross, cross-axial, vacant, PROCESS: calyx, spine, tall,
CSPH: oblate (broad), ovoid, spherical, CFC, CFC+process, polymorphic, DETAILS: ca_disjunct,
MetricsLith size: 0.5->1.3µm; Coccosphere size: 9->11µm;
Sources: csph & lith size (BC diameter) from OD
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): Extant Data source: present in the plankton (Thomsen & Egge 2015)
First occurrence (base): within no known fossil record modern (0.00-0.00Ma, base in stage). Data source: [JRY 2016]

Plot of occurrence data:

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

    References:

    Thomsen, H. A. & Egge, J. K. (2016). Papposphaera heldalii sp. nov. (Haptophyta, Papposphaeraceae) from Svalbard. Acta Protozoologica. 55: 27-32. gs

    Thomsen, H. A., Ostergaard, J. B. & Heldal, M. (2016e). Coccolithophores in Polar Waters: Papposphaera sagittifera HET and HOL revisited. Acta Protozoologica. 55: 33-50. gs


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    Papposphaera heldalii compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 16-10-2019

    Taxon Search:
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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=1007 Go to Archive.is to create a permanent copy of this page - citation notes



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