Daktylethra probertii


Classification: ntax_cenozoic -> Holococcoliths -> fossil holococcoliths -> Daktylethra -> Daktylethra probertii
Sister taxa: D. punctulata, D. probertii, D. unitatis, D. basilica, D. sp.

Taxonomy:

Citation: Daktylethra probertii Bown & Dunkley Jones, 2006
Rank: Species
Taxonomic discussion: Made up of more crystallographically distinct blocks than other species of Daktylethra.

Distinguishing features: Cavate holococcolith, seen in side-view, comprising a thin proximal plate and rim that are crystallographically distinct from a large, perforate, domed distal process. Typically, birefringent at 0° in XPL, darkening when rotated to 45°.

Farinacci & Howe catalog pages: D. probertii *

Search data:
TagsLITHS: holococcolith, elliptical, hollow, CA: pores, closed, CROSS-POLARS: 1ou, V-prominent,
MetricsLith size: 4->8µm;
Data source notes: lith size from OD
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 & Dunkley Jones, 2006
First occurrence (base): within NP14b subzone (46.29-47.84Ma, base in Lutetian stage). Data source: Bown & Dunkley Jones, 2006

Plot of occurrence data:

References:

Bown, P. R. & Dunkley Jones, T. (2006). New Paleogene calcareous nannofossil taxa from coastal Tanzania: Tanzania Drilling Project Sites 11 to 14. Journal of Nannoplankton Research. 28(1): 17-34. gs V O


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Daktylethra probertii compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 24-2-2021

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=428 Go to Archive.is to create a permanent copy of this page - citation notes



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