Holodiscolithus whitesideae


Classification: ntax_cenozoic -> Holococcoliths -> fossil holococcoliths -> Holodiscolithus -> Holodiscolithus whitesideae
Sister taxa: H. agniniae, H. catellus, H. geisenii, H. lippertii, H. liui, H. macroporus, H. minolettii, H. serus, H. solidus, H. whitesideae, H. sp.

Taxonomy:

Citation: Holodiscolithus whitesideae Bown & Newsam 2017
Rank: Species

Distinguishing features: Small, cavate, only known from side-view, steep-sided base with short, narrow spine and median septum

Farinacci & Howe catalog pages: H. whitesideae *


Morphology: Small holococcolith seen in side view, with steep-sided base and short, narrow spine. All parts of the holococcolith show similar crystallographic orientation and it is moderately birefringent at 45°, and dark at 0°. A median septum appears to be present. [Bown & Newsam 2017]

Size: Holotype L = 3.1μm, H = 3.3μm (Paratype L = 2.8μm, H = 2.9μm).

Search data:
TagsLITHS: holococcolith, elliptical, hollow, CA: process, CROSS-POLARS: V-prominent, R-prominent,
MetricsLith size: 2.5->3.5µm;
Data source notes: lith size from OD & extended slightly
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within NP16 zone (40.40-42.87Ma, top in Bartonian stage). Data source: Bown & Newsam 2017
First occurrence (base): within NP16 zone (40.40-42.87Ma, base in Lutetian stage). Data source: Bown & Newsam 2017

Plot of occurrence data:

References:

Bown, P. R. & Newsam, C. (2017). Calcareous nannofossils from the Eocene North Atlantic Ocean (IODP Expedition 342 Sites U1403–1411). Journal of Nannoplankton Research. 37(1): 25-60. gs V O


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Holodiscolithus whitesideae compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 28-2-2021

Taxon Search:
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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=726 Go to Archive.is to create a permanent copy of this page - citation notes



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