Clausicoccus fenestratus


Ancestry: Coccolithophores -> Coccolithales -> Coccolithaceae -> Clausicoccus -> Clausicoccus fenestratus
Sister taxa: C. fenestratus, C. norrisii, C. subdistichus, C. vanheckiae, C. sp.,

Short diagnosis: Typical medium sized Clausicoccus species.


Taxonomy:

Citation: Clausicoccus fenestratus (Deflandre and Fert, 1954) Prins, 1979
Rank: Species
Basionym: Discolithus fenestratus Deflandre and Fert, 1954
Variants:
Synonyms:

Farinacci & Howe catalog pages: Clausicoccus foraminis * Clausicoccus ongii * Coccolithites cribellum * Discolithus fenestratus * Ericsonia singularis *

Short diagnosis: Typical medium sized Clausicoccus species.


Size: 4.5-10µm long.

Geological Range:
Last occurrence (top): within NN1 zone (22.82-23.13Ma, top in Aquitanian stage). Data source: Young 1998
First occurrence (base): within NP12 zone (50.50-53.70Ma, base in Ypresian stage). Data source: J Self-Trail via comment

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.

Bown, P.R., (2005). 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.

Bramlette, M.N. & Sullivan, F.R., (1961). Coccolithophorids and related nannoplankton of the Early Tertiary in California. Micropaleontology, 7(129-188).

Deflandre, G. & Fert, C., (1954). Observations sur les coccolithophoridés actuels et fossiles en microscopie ordinaire et électronique. Annales de Paléontologie, 40: 115-176.

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

Prins, B., (1979). Notes on nannology 1. Clausicoccus, a new genus of fossil Coccolithophorids. INA Newsletter, 1: N2-N4.

Romein, A.J.T., (1979). Lineages in Early Paleogene calcareous nannoplankton. Utrecht Micropaleontological Bulletins, 22: 231.

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


Nannotax3 - Coccolithophores - Clausicoccus fenestratus by: Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 29-6-2017

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Jean Self-Trail (US)
You should probably change the estimate on the first occurrence for this species from NP14 to NP12, as I find this species consistently in NP12 (Early Eocene) material.
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Jeremy Young (UCL, UK)
Thanks - do you have a reference for that? I could put something like "Self Trail via comment" as the data source but ideally we are trying to get things properly documented.
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