Pontosphaera fimbriata


Classification: ntax_cenozoic -> 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:
Taxonomic 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: D. fimbriatus *

Search data:
TagsLITHS: murolith, elliptical, CA: ca_conjunct, pores, bar, CROSS-POLARS: rim-bicyclic, V-prominent, R-prominent,
MetricsLith size: 10->16µm;
Data source notes: 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:

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 V O

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 V O

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: 1-231. gs V O


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

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=1073 Go to Archive.is to create a permanent copy of this page - citation notes



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