Taxonomy:
Distinguishing features:
Parent taxon (Reticulofenestra): No bridge, no slits
This taxon: Closed central area. Rather heavily calcified giving irregular form, strongly crenulate margin.
Farinacci & Howe catalog pages: P. sessilis * , C. taiwanea *
Morphology:
Size:
Cultures: strains of this species are maintained in culture, for details see Roscoff culture collection.
Ecology & Biogeography: Occurs almost exclusively in symbiotic(?) associations with a centric diatom of the genus Thalassiosira. Deep photic.
Tags | LITHS: placolith, elliptical, CA: ca_conjunct, closed, CSPH: equant, monomorphic, CROSS-POLARS: rim-unicyclic, R-prominent, |
Metrics | Lith size: 2.5->4µm; Coccosphere size: 6->10µm; Liths per sphere: 10->30 Data source notes: RCC |
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:
Chen, M. -P. (1980). Modern and redeposited coccolithophores for the indication of sediment dispersal pattern around Taiwan offshore region. Acta Oceanographica Taiwanica. 11: 129-156. gs Lohmann, H. (1912). Untersuchungen über das Pflanzen- und Tierleben der Hochsee, zugleich ein Bericht über die biologischen Arbeiten auf der Fahrt der "Deutschland" von Bremerhaven nach Buenos-Aires in der Zeit vom 7. Mai bis 7. September 1911. Veröffentlichungen des Instituts für Meereskunde an der Universität Berlin, Neue Folge. A. Geographisch-naturwissenschaftliche Reihe. 1: 1-92. gs V O Okada, H. & McIntyre, A. (1977). Modern coccolithophores of the Pacific and North Atlantic Oceans. Micropaleontology. 23(1): 1-55. gs Reid, F. M. H. (1980). Coccolithophorids of the North Pacific Central Gyre with notes on their vertical and seasonal distribution. Micropaleontology. 26(2): 151-176. 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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Reticulofenestra sessilis compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 6-7-2022
Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=1185 Go to Archive.is to create a permanent copy of this page - citation notes |
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