INA16 Athens - September 2017

Calcidiscus pataecus

Short diagnosis: Small to medium (~3-8µm), elliptical Calcidiscus coccoliths with a closed central area.

Taxonomy:

Farinacci & Howe catalog pages: Coccolithus fuscus * Coccolithus pataecus * Coccolithus radiatus *

Short diagnosis: Small to medium (~3-8µm), elliptical Calcidiscus coccoliths with a closed central area.

Geological Range:
Notes: Larger specimens (>5µm) appear in Zone NP25. Only consistently present in the Expedition 320 samples with the best Oligocene preservation suggesting it is susceptible to dissolution (Bown & Dunkley Jones, 2012).
Last occurrence (top): within NN11 zone (5.59-8.29Ma, top in Messinian stage). Data source: Young approx range
First occurrence (base): within NP23 zone (29.62-32.02Ma, base in Rupelian stage). Data source: Bown & Dunkley Jones, 2012

Plot of occurrence data:

• Range-bar - range as quoted above, pink interval top occurs in, green interval base occurs in.
• Triangles indicate an event for which a precise placement has been suggested
• Histogram - Neptune occurrence data from DSDP and ODP proceedings. Interpret with caution & read these notes
• Taxon plotted: Calcidiscus pataecus, synonyms included - Calcidiscus fuscus; Calcidiscus pataecus; Calcidiscus radiatus; Coccolithus fuscus; Coccolithus pataceus; Coccolithus pataecus; Coccolithus radiatus; Parent: C. leptoporus group

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

Weblink to this page: ina.tmsoc.org/Nannotax3/link.php?taxon=Calcidiscus_pataecus Cite this page - citation notes

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Ines Galovic (CGS, Croatia)

The Zone NN6 is given by our publication (Galovi_ & Young, 2012). Bown & Dunkley Jones, 2012 couldn't give this data because thay were investigated mostly Paleogene sediments, not middle Miocene. In their article the source of this zone is missing.

17th August 2015 10:39am

Jeremy Young (UCL, UK)

Intersting point, but the range in our paper would have applied to the paratethys only. I have seen the morphotype much higher in the Miocene, so will emend the range.

8th September 2015 11:05pm

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