Arkhangelskiella confusa


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

Short diagnosis: Small to medium sized with a <1.5µm thick rim


Taxonomy:

Citation: Arkhangelskiella confusa Burnett, 1997
Rank: Species
Synonyms: Arkhangelskiella cymbiformis var. N of Varol 1989

Farinacci & Howe catalog pages: Arkhangelskiella confusus * Arkhangelskiella cymbiformis N *

Short diagnosis: Small to medium sized with a <1.5µm thick rim

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 Coniacian Stage (86.26-89.77Ma, base in Coniacian stage). Data source: Burnett 1997

Plot of occurrence data:

References:

Burnett, J.A., (1997). 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.

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


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Arkhangelskiella confusa compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 23-8-2017

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Comments (1)

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Baptiste Sucheras-Marx (Cerege Aix Marseille Université, France)
Hi,
I think it would be great in the future development of nannotax to add for each species information on size like size range, mean, etc with a small indication if it is from a large amount of specimen or not.
Thank you very and congratulations again for this brilliant website.
Baptiste
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Jeremy Young (UCL, UK)
Hi Baptiste
You are quite right it would be a very useful to have good data on coccolith sizes and this is one of the things we would like to add - but the problem is to find useful compendiums of data. If you have any suggestions for data sources please feel free to make them. .. but thanks anyway for the feedback.
Jeremy
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