Coronosphaera mediterranea HOL wettsteinii type

Classification: Coccolithophores -> Holococcoliths -> flat-topped -> Coronosphaera HOL type -> Coronosphaera mediterranea HOL wettsteinii type
Sister taxa: C. multipora, C. mediterranea HOL gracillima type, C. mediterranea HOL hellenica type, C. mediterranea HOL wettsteinii type, H. vercellii, S. histrica HOL,


Citation: Coronosphaera mediterranea (Lohmann 1902) Gaarder, in Gaarder & Heimdal, 1977 HOL wettsteinii type, sensu Geisen et al., 2002
Rank: Form
Basionym: Zygosphaera wettsteini Kamptner 1937

Distinguishing features: Similar to C. multipora but only 4-6, irregular, pores on distal surface.
CFCs with bridge elevated into spine-like structure, sometimes with three buttresses

Farinacci & Howe catalog pages: Zygosphaera wettsteini * , Homozygosphaera halldalii *

Biology & life-cycles: Combination coccospheres illustrated by Kamptner (1941) and Cros et al. (2000), discussed by Geisen et al. (2002). More specimens have since been observed off NW European shelf by McGrane (2007) and Young (unpubl. obs cruise D366, summer 2011).

See also: Coronosphaera mediterranea ;

Search data:
TagsLITHS: holococcolith, H: cavate, H: disk-like, elliptical, hollow, RIM: H: base flangeless, H: tube (Holos), CA: H: distal-cover, H: distal-cover-flat, pores, process, PROCESS: hollow,
CSPH: ellipsoidal-----, spherical, equant, elongated, CFC, CFC+bridge, polymorphic, V-UNITS: ds-surface, V-prominent, R-UNITS: rim, R-prominent,
MetricsLith size: 1.9->2.6µm; Coccosphere size: 9->16µm; Liths per sphere: 70->150
Sources: morphom data from Yang & Wei (2003), Cros & Fortuño (2002) & Kleijne 1991
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 Quaternary Period (0.00-2.59Ma, base in Gelasian stage). Data source: [JRY rough estimate]

Plot of occurrence data:

  • (NB There is no histogram as there are no occurrence records for the taxon in the Neptune database) Parent: Coronosphaera HOL type


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

    Cros, L., Kleijne, A., Zeltner, A., Billard, C. & Young, J. R. (2000b). New examples of holococcolith-heterococcolith combination coccospheres and their implications for coccolithophorid biology. Marine Micropaleontology. 39(1-4): 1-34. gs

    Halldal, P. & Markali, J. (1955). Electron microscope studies on coccolithophorids from the Norwegian Sea, the Gulf Stream and the Mediterranean. Avhandlinger utgitt av det Norske Videnskapsakademi i Oslo. Mat.- Naturvid. Klasse. 1: 1-30. gs

    Kamptner, E. (1937). Neue und bemerkenswerte Coccolithineen aus dem Mittelmeer. Archiv für Protistenkunde. 89: 279-316. gs

    McGrane, P. B. (2007). Extant coccolithophores in Irish shelf waters of the northeast Atlantic. PhD thesis, Galway University. 1-360. gs

    Norris, R. E. (1985). Indian Ocean nanoplankton. II. Holococcolithophorids (Calyptrosphaeraceae, Prymnesiophyceae) with a review of extant genera. Journal of Phycology. 21: 619-641. gs

    Skejic, S. et al. (2018). Coccolithophore diversity in open waters of the middle Adriatic Sea in pre- T and post-winter periods. Marine Micropaleontology. 143(1): 30-45. 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


    Coronosphaera mediterranea HOL wettsteinii type compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 23-2-2020

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