Nannotax3 - ntax_mesozoic - Arkhangelskiella confusa

Arkhangelskiella confusa

Classification: ntax_mesozoic -> hidden -> deleted -> Arkhangelskiella confusa
Sister taxa: A. variabilis, A. confusa, A. paucipunctata, C. noeliae subsp. depressa, C. noeliae subsp. noeliae, C. noeliae subsp. recondita, Centosphaera, C. barbata, C. ocellatus, C. prinsii, C. deflandrei (morphotype A), C. deflandrei (morphotype B), C. asymmetricus, H. geometricus, M. bramlettei, N. erbae, Obliquipithonella> >>

Distinguishing features: Small to medium sized with a <1.5µm thick rim

Varol 1989 pl1 f5-8.JPG

Taxonomy:

Citation: Arkhangelskiella confusa Burnett, 1997

Rank: Species

Synonyms: Arkhangelskiella cymbiformis var. N of Varol 1989

Farinacci & Howe catalog pages: A. confusus * , A. cymbiformis N *

Distinguishing features: Small to medium sized with a <1.5µm thick rim

Search data:

Tags	LITHS: placolith, elliptical, CA: plate,
Metrics	Lith size: 0->0µm;

The morphological data given here can be used on the advanced search page. See also these notes

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:

Range-bar - range as quoted above, pink interval top occurs in, green interval base occurs in.
Triangles indicate an event for which a precise placement has been suggested
Histogram - Neptune occurrence data from DSDP and ODP proceedings. Pale shading <50 samples in time bin. Interpret with caution & read these notes
Taxon plotted: Arkhangelskiella confusa, synonyms included - Arkhangelskiella confusa;
See also space-time plot :: Samples map :: Parent: deleted

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 V O

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 V O

Arkhangelskiella confusa compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 20-1-2021

Taxon Search:

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Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=10036 Go to Archive.is to create a permanent copy of this page - citation notes

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

18th February 2016 1:56pm

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

18th February 2016 2:31pm

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