Holodiscolithus lippertii


Classification: ntax_cenozoic -> Holococcoliths -> fossil holococcoliths -> Holodiscolithus -> Holodiscolithus lippertii
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 lippertii Bown & Newsam 2017
Rank: Species

Distinguishing features: elliptical, with axial ridges & 8-10 perforations; formed of 4 blocks with diagonal sutures

Farinacci & Howe catalog pages: H. lippertii *


Morphology: Small, elliptical, moderately-birefringent holococcolith crossed by roughly diagonal extinction lines in XPL delineating four blocks, which are birefringent at 0° and dark at 45°. There are around 8–10 perforations across the blocks and raised axial ridges are visible in phase contrast.
Differentiation: The perforations are smaller than Holodiscolithus solidus and less numerous than Holodiscolithus macroporus. [Bown & Newsam 2017]

Size: Holotype L = 3.2μm (Paratype L = 3.4μm).

Search data:
TagsLITHS: holococcolith, elliptical, CA: pores, CROSS-POLARS: R-prominent,
MetricsLith size: 3->4µm; Segments: 4->4;
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 NP21 zone (32.92-34.44Ma, top in Rupelian stage). Data source: Bown & Newsam 2017
First occurrence (base): within NP21 zone (32.92-34.44Ma, base in Priabonian 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 lippertii compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 24-2-2021

Taxon Search:
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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=719 Go to Archive.is to create a permanent copy of this page - citation notes



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