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Nannotax3 - ntax_cenozoic - Chrysotila placolithoides Nannotax3 - ntax_cenozoic - Chrysotila placolithoides

Chrysotila placolithoides


Classification: ntax_cenozoic -> Coccolithales -> Pleurochrysidaceae -> Chrysotila -> Chrysotila placolithoides
Sister taxa: C. carterae, C. dentata, C. gayraliae, C. la-hague, C. placolithoides, C. roscoffensis, C. scherffelii, C. stipitata, C. sp.

Taxonomy:

Citation: Chrysotila placolithoides (Fresnel & Billard, 1991) Andersen et al. 2014
Taxonomic rank: species
Basionym: Pleurochrysis placolithoides Fresnel & Billard, 1991

Distinguishing features:
Parent taxon (Chrysotila): Coccoliths elliptical narrow-rimmed placoliths with complex rim structure, open central area
This taxon: Coccoliths with broad flanges; larger (2-4 µm long); distal shield nearly twice as wide as in any other Pleurochrysis species.

Farinacci & Howe catalog pages: P. placolithoides *


Size:
Liths 2-4µm long; Coccospheres ca. 15 µm long


Cultures: Strains of this species are maintained in culture, for details see Roscoff Culture Collection.

Search data:
LITHS: placolith, elliptical, CA: vacant,
CSPH: equant, monomorphic, CROSS-POLARS: V-prominent, R-prominent, rim-bicyclic,
Lith size: 2->4µm; Segments: 11->12; Coccosphere size: 14->16µm; Liths per sphere: 60->120
Data source notes: RCC
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): Extant. Data source: present in the plankton (Young et al. 2003)
First occurrence (base): within No known fossil record modern (0.00-0.00Ma, base in "Holocene" stage). Data source: [JRY rough estimate]

Plot of occurrence data:

References:

Andersen, R. A., Kim, J. I., Tittley, I. & Yoon, H. S. (2014). A re-investigation of Chrysotila (Prymnesiophyceae) using material collected from the type locality. Phycologia. 53(5): 463-473. gs

Fresnel, J. & Billard, C. (1991). Pleurochrysis placolithoides sp. nov. (Prymnesiophiceae), a new marine coccolithophorid with remarks on the status of cricolith-bearing species. British Phycological Journal. 26: 67-80. 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. S1: 1-132. gs


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Chrysotila placolithoides compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 16-3-2025

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=294 Go to Archive.is to create a permanent copy of this page - citation notes
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