Perchnielsenella stradneri

Classification: Mesozoic -> Watznaueriales -> Watznaueriaceae -> Perchnielsenella -> Perchnielsenella stradneri
Sister taxa: P. stradneri, P. sp.,

Distinguishing features: Medium to large, barrel-shaped coccoliths that are highly-birefringent and seen in both side and plan view. Narrow central area.


Citation: Perchnielsenella stradneri (Perch-Nielsen, 1973) Watkins in Watkins & Bowdler, 1984
Rank: Species
Basionym: Lithastrinus stradneri Perch-Nielsen 1973
Synonyms: Cylindralithus stradneri (Perch-Nielsen, 1973) Romein 1977

Farinacci & Howe catalog pages: Lithastrinus stradneri *

Distinguishing features: Medium to large, barrel-shaped coccoliths that are highly-birefringent and seen in both side and plan view. Narrow central area.

Search data:
TagsLITHS: nannolith-radiate, placolith, circular, cylindrical, hollow, CA: vacant,
CSPH: equant, monomorphic, R-UNITS: R-prominent, DETAILS: rim-unicyclic,
MetricsLith size: 5->9µm;
Sources: original description & illustrated specimens
The morphological data given here can be used on the advanced search page. See also these notes

See also: Cylindralithus oweinae ;Cribrocorona gallica - rather similar;

Geological Range:
Last occurrence (top): at top of Maastrichtian Stage (100% up, 66Ma, in Maastrichtian stage). Data source: Lees & Bown 2005 - consistently present to end Cret
First occurrence (base): within Campanian Stage (72.05-83.64Ma, base in Campanian stage). Data source: Burnett 1998

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: Perchnielsenella stradneri, synonyms included - Cylindralithus stradneri; Perchnielsenella stradneri;
  • space-time plot :: Samples map :: Parent: Perchnielsenella


    Burnett, J. A. (1998). Upper Cretaceous. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series. 132-199. gs

    Lees, J. A. & Bown, P. R. (2005). Upper Cretaceous calcareous nannofossil biostratigraphy, ODP Leg 198 (Shatsky Rise, Northwest Pacific Ocean). Proceedings of the Ocean Drilling Program. Scientific Results. 198: 1-60. gs

    Perch-Nielsen, K. (1973). Neue Coccolithen aus dem Maastrichtien von Danemark, Madagaskar und Agypten. Geological Society of Denmark, Bulletin. 22: 306-333. gs

    Romein, A. J. T. (1977). Calcareous nannofossils from the Cretaceous/Tertiary boundary interval in the Barranco del Gredero (Caravaca, Prov. Murcia, S.E. Spain). II. Proceedings of the Koninklijke Nederlandse Akademie van Wetenschappen. B80: 269-279. gs

    Thibault, N. (2010). Calcareous nannofossils from the boreal Upper Campanian- Maastrichtian chalk of Denmark. Journal of Nannoplankton Research. 30(1): 39-56. gs

    Watkins, D. K. & Bowdler, J. L. (1984). Cretaceous calcareous nannofossils from Deep Sea Drilling Project Leg 77, southeast Gulf of Mexico. Initial Reports of the Deep Sea Drilling Project. 77: 649-674. gs


    Perchnielsenella stradneri compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 25-2-2020

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