Pontosphaera veta


Classification: Coccolithophores -> Zygodiscales -> Pontosphaeraceae -> Pontosphaera -> Pontosphaera veta
Sister taxa: P. multipora, P. discopora, P. distincta, P. enormis, P. desuetoidea, P. geminipora, P. longiforaminis, P. megapachydisca, P. veta, P. syracusana, P. alta, P. panarium, P. versa, P. wallacei, P. latoculata, P. sp.A, P. formosa, P. wechesensis, P. fimbriata, P. brinkhuisii, P. hollisii, P. romansii, P. japonica, P. plana, > >>

Taxonomy:

Citation: Pontosphaera veta Bown 2016
Rank: Species

Distinguishing features: Small to medium-sized; rim narrow; central area wide, spanned by a finely perforate plate

Farinacci & Howe catalog pages: Pontosphaera veta *


Morphology remarks: Medium-sized Pontosphaera with narrow rim and wide central area spanned by a finely perforate plate. The small perforations are circular to elongate and irregularly distributed, but are typically arranged in three cycles.
Distinguished from other Pontosphaera species by the finely perforate central area plate. It is also significantly older than previously described species in this genus. [Bown 2016]

Size: 5.6–7.2μm [Bown 2016]

Search data:
TagsLITHS: murolith, elliptical, RIM: outer wall acw-imbricate, CA: pores,
CSPH: not known, V-UNITS: outer-rim, V-prominent, R-UNITS: c-str, inner-rim, px-plate, R-prominent, DETAILS: ca_conjunct, rim-bicyclic, isogyres oblique, isogyres separated,
MetricsLith size: 5->8µm;
Sources: lith size from OD and slightly extended
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within NP5 zone (59.54-61.51Ma, top in Selandian stage). Data source: Bown 2016
First occurrence (base): within NP5 zone (59.54-61.51Ma, base in Selandian stage). Data source: Bown 2016

Plot of occurrence data:

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

    References:

    Bown, P. R. (2016). Paleocene calcareous nannofossils from Tanzania (TDP sites 19, 27 and 38). Journal of Nannoplankton Research. 36(1): 1-32. gs :: view :: open


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    Pontosphaera veta compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 5-6-2020

    Taxon Search:
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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=1101 Go to Archive.is to create a permanent copy of this page - citation notes



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