Biantholithus flosculus


Classification: ntax_cenozoic -> Coccolith families inc sed -> Coccolith genera inc sed -> Biantholithus -> Biantholithus flosculus
Sister taxa: B. astralis, B. flosculus, B. hughesii, B. sparsus, B. sp.

Taxonomy:

Citation: Biantholithus flosculus Bown 2005
Rank: Species
Taxonomic discussion: Tentatively included within Biantholithus

Distinguishing features: Medium sized circular, rossette shaped nannolith with 11-16 radial rays. Weakly birefringent in XPL.

Farinacci & Howe catalog pages: B. flosculus *


Size: Diameter 4.5-6.3µm

Search data:
TagsLITHS: placolith, circular, CA: closed,
CSPH: equant, monomorphic, CROSS-POLARS: rim-unicyclic, R-prominent,
MetricsLith size: 4->6µm; Segments: 11->12;
Data source notes: lith length from OD and slightly extended
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within NP9 zone (55.86-57.21Ma, top in Ypresian stage). Data source: Bown 2005
First occurrence (base): within NP6 zone (58.97-59.54Ma, base in Selandian stage). Data source: [PRB rough estimate]

Plot of occurrence data:

References:

Bown, P. R. (2005d). Palaeogene calcareous nannofossils from the Kilwa and Lindi areas of coastal Tanzania (Tanzania Drilling Project 2003-4). Journal of Nannoplankton Research. 27(1): 21-95. gs V O

Bown, P. R. (2010). Calcareous nannofossils from the Paleocene/Eocene Thermal Maximum interval of southern Tanzania (TDP Site 14). Journal of Nannoplankton Research. 31(1): 11-38. gs V O


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Biantholithus flosculus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 1-3-2021

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=73 Go to Archive.is to create a permanent copy of this page - citation notes



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