Semihololithus biskayae


Classification: ntax_cenozoic -> Holococcoliths -> fossil holococcoliths -> Semihololithus -> Semihololithus biskayae
Sister taxa: S. biskayae, S. dimidius, S. kanungoi, S. pseudobiskayae, S. sp. cf. S. biskayae, S. tentorium, N. figularia, N. hexaporus, S. sp.

Taxonomy:

Citation: Semihololithus biskayae Perch-Nielsen, 1971
Rank: Species
Synonyms: Homozygosphaera biskayae Varol 1989

Distinguishing features: Cavate holococcoliths comprising a thick proximal plate and a solid domed distal surface with perforations or pits.

Farinacci & Howe catalog pages: S. biskayae *

Search data:
TagsLITHS: holococcolith, elliptical, hollow, CA: pores, CROSS-POLARS: R-prominent,
MetricsLith size: 3->5µm;
Data source notes: lith size from 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 NP9 zone (55.86-57.21Ma, top in Ypresian stage). Data source: Bown 2005
First occurrence (base): within NP9 zone (55.86-57.21Ma, base in Thanetian stage). Data source: Bown 2005

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. (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

Bown, P. R. (2016). Paleocene calcareous nannofossils from Tanzania (TDP sites 19, 27 and 38). Journal of Nannoplankton Research. 36(1): 1-32. gs V O

Perch-Nielsen, K. (1971b). Einige neue Coccolithen aus dem Paläozän der Bucht von Biskaya und dem Eozän der Labrador See. Bulletin of the Geological Society of Denmark. 21: 347-361. gs V O

Self-Trail, J. (2011). Paleogene Calcareous Nannofossils of the South Dover Bridge core, Southern Maryland (USA). Journal of Nannoplankton Research. 32(1): 1-28. gs V O

Shepherd, C. L. & Kulhanek, D. K. (2016). Eocene nannofossil biostratigraphy of the mid-Waipara River section, Canterbury Basin, New Zealand. Journal of Nannoplankton Research. 26(1): 33-59. gs V O

Varol, O. (1989b). Eocene calcareous nannofossils from Sile (northwest Turkey). Revista Española de Micropaleontología. 21: 273-320. gs V O


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Semihololithus biskayae 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=1242 Go to Archive.is to create a permanent copy of this page - citation notes



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