Biscutum dekaenelii


Classification: Mesozoic -> Podorhabdales -> Biscutaceae -> Biscutum -> Biscutum dekaenelii
Sister taxa: B. constans, B. ellipticum, B. coronum, B. dekaenelii, B. magnum, B. melaniae, B. arrogans, B. asymmetricum, B. boletum, B. dissimilis, B. zulloii, B. hattneri, B. notaculum, B. virginica, B. gaultensis, B. thurowii, B. davyi, B. depravatum, B. dorsetensis, B. dubium, B. erismatum, B. grande, B. intermedium, B. planum, B. profundum, B. sp.,

Distinguishing features: Medium (4-6 µm), Central area spanned by a granular cross with hollow central knob


Taxonomy:

Citation: Biscutum dekaenelii Covington, 1994
Rank: Species

Farinacci & Howe catalog pages: B. dekaenelii *

Distinguishing features: Medium (4-6 µm), Central area spanned by a granular cross with hollow central knob

Search data:
TagsLITHS: placolith, elliptical, CA: cross-axial, ca_disjunct, process, CROSS-POLARS: rim-bicyclic, V-prominent, R-prominent,
MetricsLith size: 4->6µm;
Data source notes: holotype +/- 1µm & illustrated specimens
The morphological data given here can be used on the advanced search page. See also these notes

See also: Boletuvelum candens - form with similar base but large spine ending in domal cover and possibly co-occuring on same coccosphere;

Geological Range:
Last occurrence (top): within Santonian Stage (83.64-86.26Ma, top in Santonian stage). Data source: Burnett 1998
First occurrence (base): within Coniacian Stage (86.26-89.77Ma, base in Coniacian stage). Data source: Burnett 1998

Plot of occurrence data:

References:

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

Covington, M. (1994). New taxa from the Niobrara Formation (Upper Cretaceous) of Kansas, USA. Journal of Nannoplankton Research. 16(3): 121-131. gs V O


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Biscutum dekaenelii compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 30-9-2020

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Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=10074 Go to Archive.is to create a permanent copy of this page - citation notes



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