Taxonomy:
Distinguishing features: Larger extant subspecies, liths over 10µm long; warmer water form, 10-20°C, typically in upwellings
Farinacci & Howe catalog pages: C. braarudi + * , C. pelagicus azorinus *
Cultures: strains of this species are maintained in culture, for details see Roscoff culture collection.
Biology & life-cycles: HOL - planar with incomplete cover of crystallites arranged in radial strings extending from a central ellipse (formerly called Crystallolithus braarudii Gaarder 1962).
See also: Coccolithus pelagicus subsp. braarudii HOL ;
Search data:Tags | LITHS: placolith, elliptical, CA: ca_disjunct, vacant, bar, CSPH: equant, monomorphic, CROSS-POLARS: rim-bicyclic, V-prominent, R-prominent, |
Metrics | Lith size: 9->15µm; Coccosphere size: 12->30µm; Liths per sphere: 6->25 Data source notes: csph & lith size from Gibbs et al. 2013 |
Geological Range:
Last occurrence (top): Extant Data source: present in the plankton (Young et al. 2003)
First occurrence (base): within Quaternary Period (0.00-2.59Ma, base in Gelasian stage). Data source: [JRY rough estimate]
Plot of occurrence data:
Gaarder, K. R. (1962). Electron Microscope Studies on Holococcolithophorids. Nytt Magasin for Botanikk. 10: 35-51. gs Sáez, A. G., Probert, I., Geisen, M., Quinn, P., Young, J. R. & Medlin, L. K. (2003). Pseudo-cryptic speciation in coccolithophores. Proceedings of the National Academy of Sciences, USA. 100(12): 7163-7168. gs Young, J. R., Geisen, M., Cros, L., Kleijne, A., Probert, I. & Ostergaard, J. B. (2003). A guide to extant coccolithophore taxonomy. Journal of Nannoplankton Research, Special Issue. 1: 1-132. gs V OReferences:
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Coccolithus pelagicus subsp. braarudii compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 21-1-2021
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