Pontosphaera panarium


Classification: Coccolithophores -> Zygodiscales -> Pontosphaeraceae -> Pontosphaera -> Pontosphaera panarium
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, P. rimosa, P. pectinata, P. wilsonii, > >>

Taxonomy:

Citation: Pontosphaera panarium (Deflandre in Deflandre & Fert, 1954) Aubry, 1986
Rank: Species
Basionym: Discolithus panarium Deflandre in Deflandre & Fert, 1954
Notes & discussion: Like Pontosphaera versa but the plate is dark in XPL.

Distinguishing features: Pontosphaera with elevated, birefringent rim and a thin, low birefringence plate without perforations.

Farinacci & Howe catalog pages: Discolithus panarium *

Search data:
TagsLITHS: murolith, elliptical, RIM: rim-high, outer wall acw-imbricate, CA: Placoliths: closed-----, pores, closed,
CSPH: not known, V-UNITS: outer-rim, V-prominent, R-UNITS: c-str, inner-rim, px-plate, R-prominent, DETAILS: isogyres oblique, isogyres separated, rim-unicyclic,
MetricsLith size: 8->15µm;
Sources: lith size from OD & illustrated specimens
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within NP23 zone (29.62-32.02Ma, top in Rupelian stage). Data source: [PRB rough estimate]
First occurrence (base): within NP15 zone (42.87-46.29Ma, base in Lutetian stage). Data source: [PRB rough estimate]

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:

    Aubry, M-P. (1986a). Palaeogene calcareous nannofossil biostratigraphy of northwestern Europe. Palaeogeography Palaeoclimatology Palaeoecology. 55: 267-334. gs :: ::

    Bown, P. R. (2005d). Palaeogene calcareous nannofossils from the Kilwa and Lindi areas of coastal Tanzania (Tanzania Drilling Project 2003-4). Journal of Nannoplankton Research. 27(1): 21-95. gs :: view :: open

    Deflandre, G. & Fert, C. (1954). Observations sur les coccolithophoridés actuels et fossiles en microscopie ordinaire et électronique. Annales de Paléontologie. 40: 115-176. gs :: ::

    Perch-Nielsen, K. (1967b). Nannofossilien aus dem Eozan von Danemark. Eclogae Geologicae Helvetiae. 60: 19-32. gs :: view :: open


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

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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=1085 Go to Archive.is to create a permanent copy of this page - citation notes



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