Nannotax3 - ntax_cenozoic - Papposphaera heldalii

Nannotax3 - ntax_cenozoic - Papposphaera heldalii Nannotax3 - ntax_cenozoic - Papposphaera heldalii

Papposphaera heldalii

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

Thomsen Egge 2016 Pheld-pl-3.JPG
Thomsen Egge 2016 Pheld-pl-6.JPG
Thomsen Egge 2016 Pheld-pl-4.JPG
Thomsen Egge 2016 Pheld-pl-5.JPG
Thomsen Egge 2016 Pheld-pl-7.JPG
Thomsen Egge 2016 Pheld-pl-2.JPG
Thomsen etal 2016 Psagit fig3-Fab.JPG

Taxonomy:

Citation: Papposphaera heldalii Thomsen & Egge 2016

taxonomic rank: Species

Distinguishing features:
Parent taxon (Papposphaera): Coccolith distal rim serrated - elements pentagonal;
Coccosphere varimorphic, or dimorphic. All coccoliths have spines but CFCs typically have longer spines and larger calices.
This taxon: 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: Papposphaera heldalii

Search data:

LITHS: murolith, elliptical, CA: ca_disjunct, vacant, cross-axial, process,
CSPH: equant, CFC,

Lith size: 0.5->1.3µm; Coccosphere size: 9->11µm;
Data source notes: 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 "Holocene" stage). Data source: [JRY 2016]

Plot of occurrence data:

Range-bar - range as quoted above, pink interval top occurs in, green interval base occurs in.
Triangles indicate an event for which a precise placement has been suggested
(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. (2016). Coccolithophores in Polar Waters: Papposphaera sagittifera HET and HOL revisited. Acta Protozoologica. 55: 33-50. gs

Papposphaera heldalii compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 16-10-2024

Taxon Search:

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