Pontosphaera fimbriata


Classification: Coccolithophores -> Zygodiscales -> Pontosphaeraceae -> Pontosphaera -> Pontosphaera fimbriata
Sister taxa: << < 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, P. punctosa, P. clinosulcata, P. perforomarginata, P. pulcheroides, P. pulchra, P. pygmaea, P. ocellata, > >>

Taxonomy:

Citation: Pontosphaera fimbriata (Bramlette & Sullivan, 1961) Romein, 1979
Rank: Species
Basionym: Discolithus fimbriatus Bramlette & Sullivan, 1961
Synonyms:
Notes & discussion: Like Pontosphaera formosa but with a plate with two holes.

Distinguishing features: Similar to P. formosa but with two large holes in plate separated by a transverse bar.

Farinacci & Howe catalog pages: Discolithus fimbriatus *

Search data:
TagsLITHS: murolith, elliptical, RIM: flange-distal, outer wall acw-imbricate, CA: bar-transverse, pores, bar,
CSPH: not known, V-UNITS: outer-rim, V-prominent, R-UNITS: all, c-str, distal shield, 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 NP15 zone (42.87-46.29Ma, top in Lutetian 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:

  • 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 fimbriata, synonyms included - Discolithina fimbriata; Discolithus fimbriatus; Koczyia fimbriata; Pontosphaera fimbriata; Syracosphaera fimbriata; Transversopontis fimbriatus;
  • 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 :: ::

    Bybell, L. (1975). Middle Eocene calcareous nannofossils at Little Stave Creek, Alabama. Tulane Studies in Geology and Paleontology. 11(4): 177-247. gs :: view :: open

    Perch-Nielsen, K. (1971c). Elektronenmikroskopische untersuchungen an Coccolithen und verwandten Formen aus dem Eozan von Danemark. Biologiske Skrifter, Kongelige Danske Videnskabernes Selskab. 18(3): 1-76. gs :: ::

    Romein, A. J. T. (1979). Lineages in Early Paleogene calcareous nannoplankton. Utrecht Micropaleontological Bulletin. 22: 231-. gs :: ::

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

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