Pontosphaera distincta


Classification: Coccolithophores -> Zygodiscales -> Pontosphaeraceae -> Pontosphaera -> Pontosphaera distincta
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, > >>

Taxonomy:

Citation: Pontosphaera distincta (Bramlette & Sullivan, 1961) Roth & Thierstein, 1972
Rank: Species
Basionym: Discolithus distinctus Bramlette & Sullivan, 1961

Distinguishing features: Large thick coccolith (orange birefringence in XPL) with broad thickened rim/margin and a relatively thick narrow perforate central plate.

Farinacci & Howe catalog pages: Discolithus distinctus *

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: 10->16µm;
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 NP16 zone (40.40-42.87Ma, top in Bartonian stage). Data source: [PRB rough estimate]
First occurrence (base): within NP15b subzone (44.12-45.49Ma, base in Lutetian stage). Data source: [PRB rough estimate]

Plot of occurrence data:

  • Histogram - Neptune occurrence data from DSDP and ODP proceedings. Pale shading <50 samples in time bin. Interpret with caution & read these notes
  • Note to users in China - the diagram may not plot unless you use a VPN since I use google services on the website. If this is a problem please contact me 谢谢.
  • Taxon plotted: Pontosphaera distincta, synonyms included - Discolithina distincta; Discosphaera distincta; Pontosphaera distincta;
  • space-time plot :: Samples map :: Parent: Pontosphaera

    References:

    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

    Bramlette, M. N. & Sullivan, F. R. (1961). Coccolithophorids and related nannoplankton of the Early Tertiary in California. Micropaleontology. 7(2): 129-188. gs :: ::

    Roth, P. H. & Thierstein, H. R. (1972). Calcareous nannoplankton: Leg 14 of the Deep Sea Drilling Project. Initial Reports of the Deep Sea Drilling Project. 12: 546-559. gs :: view :: open

    Self-Trail, J. (2011). Paleogene Calcareous Nannofossils of the South Dover Bridge core, Southern Maryland (USA). Journal of Nannoplankton Research. 32(1): 1-28. gs :: view :: open

    Shepherd, C. L. & Kulhanek, D. K. (2016). Eocene nannofossil biostratigraphy of the mid-Waipara River section, Canterbury Basin, New Zealand. Journal of Nannoplankton Research. 26(1): 33-59. gs :: view :: open


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

    Taxon Search:
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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=1069 Go to Archive.is to create a permanent copy of this page - citation notes



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