Nannotax3 - ntax_cenozoic - Pontosphaera megapachydisca

Pontosphaera megapachydisca

Classification: ntax_cenozoic -> Zygodiscales -> Pontosphaeraceae -> Pontosphaera -> Pontosphaera megapachydisca
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> >>

Taxonomy:

Citation: Pontosphaera megapachydisca Steurbaut 2011

Rank: Species

Distinguishing features: Very large (16-19 µm), large pores around margin, and a few irregular pores in centre

Farinacci & Howe catalog pages: P. megapachydisca *

Search data:

Tags	LITHS: murolith, elliptical, CA: ca_conjunct, pores, CROSS-POLARS: rim-bicyclic, V-prominent, R-prominent,
Metrics	Lith size: 15->20µm; Data source notes: 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 NP14 zone (46.29-49.11Ma, top in Lutetian stage). Data source: Steurbaut 2011
First occurrence (base): within NP13 zone (49.11-50.50Ma, base in Ypresian stage). Data source: Steurbaut 2011

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: Pontosphaera

References:

Steurbaut, E. (2011). New calcareous nannofossil taxa from the Ypresian (Early Eocene) of the North Sea Basin and the Turan Platform in West Kazakhstan. Bulletin de l'Institut Royal des Sciences Naturelles de Belgique Sciences de la Terre. 81: 247-277. gs

Pontosphaera megapachydisca compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 18-4-2021

Taxon Search:

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=1081 Go to Archive.is to create a permanent copy of this page - citation notes

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