Arkhangelskiella maastrichtiensis


Classification: Mesozoic -> Arkhangelskiales -> Arkhangelskiellaceae -> Arkhangelskiella -> Arkhangelskiella maastrichtiensis
Sister taxa: A. confusa, A. cymbiformis, A. maastrichtiensis, A. paucipunctata, A. specillata, A. sp.,

Distinguishing features: Large sized (>10µm) with a broad rim (>1.5µm)


Taxonomy:

Citation: Arkhangelskiella maastrichtiensis Burnett, 1997
Rank: Species
Synonyms: Arkhangelskiella cymbiformis var. W of Varol 1989

Farinacci & Howe catalog pages: Arkhangelskiella maastrichtiensis * , Arkhangelskiella cymbiformis W * , ,

Distinguishing features: Large sized (>10µm) with a broad rim (>1.5µm)

Geological Range:
Notes: According to Varol 1989 this form only becomes common in the Late Maastrichtian
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 1997

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: Arkhangelskiella maastrichtiensis, synonyms included - Arkhangelskiella maastrichtiensis; Arkhangelskiella maastrichtiana; space-time plot :: Samples map :: Parent: Arkhangelskiella

    References:

    Burnett, J. A. (1997c). New species and new combinations of Cretaceous nannofossils and a note on the origin of Petrarhabdus (Deflandre) Wise & Wind. Journal of Nannoplankton Research. 19(2): 133-146. gs

    Varol, O. (1989d). Quantitative analysis of the Arkhangelskiella cymbiformis group and its biostratigraphical usefulness in the North Sea area. Journal of Micropalaeontology. 8: 131-134. gs

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    Arkhangelskiella maastrichtiensis compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 17-7-2019

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