Distinguishing features: Small to medium sized with a <1.5µm thick rim
Taxonomy:
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; |
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:
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 OReferences:
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Arkhangelskiella confusa compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 20-1-2021
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