Sphaerocalyptra adenensis


Classification: Coccolithophores -> Holococcoliths -> tubeless -> Sphaerocalyptra -> Sphaerocalyptra adenensis
Sister taxa: S. quadridentata, S. adenensis, S. dermitzakii, S. youngii, S. sp. 1, S. sp. 2, S. sp. 3, S. sp. 4, S. sp. 5, S. sp. 6, S. sp. Y, S. sp.

Taxonomy:

Citation: Sphaerocalyptra adenensis Kleijne, 1991
Rank: Species
Variants:
Taxonomic discussion: arguably a variant of S. quadridentata

Distinguishing features: BCs flatter than S. quadridentata

Farinacci & Howe catalog pages: S. adenensis *


Morphology: Similar to S. quadridentata but flatter conical shape; no basal flange; walls show non-perforate fabric. BCs ca. 2 µm long, 1 µm high.


Biology & life-cycles: Probably combination coccosphere of S. cf. adenensis and Acanthoica sp. illustrated by Triantaphylou et al. 2016

Search data:
TagsLITHS: holococcolith, elliptical, cylindrical, hollow, CA: closed,
CSPH: equant, elongated, CFC,
MetricsLith size: 1.8->2.5µm; Coccosphere size: 5.5->8.5µm; Liths per sphere: 60->75
Data source notes: morphom data from Cros & Fortuño (2002)
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 stage). Data source: [JRY rough estimate]

Plot of occurrence data:

References:

Cros, L. & Fortuño, J. -M. (2002). Atlas of northwestern Mediterranean coccolithophores. Scientia Marina. 66: 1-186. gs V O

Dimiza, M. D., Triantaphyllou, M. & Theodoridis, S. (2005). Sphaerocalyptra dermitzakii and Sphaerocalyptra youngii, two new holococcolithophore species from the Aegean Sea (eastern Mediterranean). Journal of Nannoplankton Research. 27(2): 135-139. gs V O

Kleijne, A. (1991). Holococcolithophorids from the Indian Ocean, Red Sea, Mediterranean Sea and North Atlantic Ocean. Marine Micropaleontology. 17: 1-76. gs

Triantaphyllou, M. et al. (2016). Coccolithophore combination coccospheres from the NE Mediterranean Sea: new evidence and taxonomic revisions. Micropaleontology. 61(6): 457-472. 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 O


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Sphaerocalyptra adenensis compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 24-10-2020

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Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=1264 Go to Archive.is to create a permanent copy of this page - citation notes



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