Daktylethra punctulata


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

Taxonomy:

Citation: Daktylethra punctulata Gartner in Gartner & Bukry, 1969
Rank: Species

Distinguishing features: Tall, thick-walled, cavate, dome-shaped coccoliths, seen in side-view, with a distinctly undulating outer surface. The crystallites form crystallographically-continuous blocks that are bright in XPL when the long axis is parallel with the polarising direction.

Farinacci & Howe catalog pages: D. punctulata *

Search data:
TagsLITHS: holococcolith, elliptical, hollow, CA: pores, closed, CROSS-POLARS: 1ou, V-prominent,
MetricsLith size: 4->6µm;
Data source notes: lith size from OD and illustrated specs
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within NP17 zone (37.32-40.40Ma, top in Priabonian stage). Data source: Bown & Dunkley Jones, 2006
First occurrence (base): within NP16 zone (40.40-42.87Ma, 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

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

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

Bybell, L. (1975). Middle Eocene calcareous nannofossils at Little Stave Creek, Alabama. Tulane Studies in Geology and Paleontology. 11(4): 177-247. gs V O

Gartner, S. & Bukry, D. (1969). Tertiary holococcoliths. Journal of Paleontology. 43(5): 1213-1221. gs

Perch-Nielsen, K. (1971c). Elektronenmikroskopische untersuchungen an Coccolithen und verwandten Formen aus dem Eozan von Danemark. Biologiske Skrifter, Kongelige Danske Videnskabernes Selskab. 18(3): 1-76. gs

Shamrock, J. L. & Watkins, D. K. (2012). Eocene calcareous nannofossil biostratigraphy and community structure from Exmouth Plateau, Eastern Indian Ocean (ODP Site 762). Stratigraphy. 9(1): 1-11. gs

Varol, O. (1998). Palaeogene. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series. 200-224. gs


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Daktylethra punctulata 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=429 Go to Archive.is to create a permanent copy of this page - citation notes



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