Syracosphaera marginiporata HOL

Classification: Coccolithophores -> Holococcoliths -> tubeless -> Anthosphaera -> Syracosphaera marginiporata HOL
Sister taxa: S. marginiporata HOL, S. molischii HOL, A. lafourcadii, A. origami, A. periperforata, A. sp. type C, A. sp.,


Citation: Syracosphaera marginiporata Knappertsbusch 1993 HOL
Rank: Species
Taxonomic discussion: This holococcolith type was informally described by Cros & Fortuño (2002) and subsequently proven to be the holoccollith phase of S. marginiporata by Supraha et al. (2018)

Distinguishing features: BCs minute (<1 µm) rounded protrusion typically with multiple openings, and well separated from the rim. CFCs arched.

Farinacci & Howe catalog pages: A. sp. type B [no catalog entry yet]

Biology & life-cycles: An association of the heterococcolith Syracosphaera marginiporata with this holococcolith type was suggested by Cros & Fortuno (2002) based on observation of a single combination coccosphere (Fig. 112C-D). It was confirmed by Supraha et al. (2018), by observation of a second, well-preserved, combination coccosphere.

See also: Syracosphaera marginiporata - alternate life-cycle phase;

Search data:
TagsLITHS: holococcolith, elliptical, CA: pores, process,
CSPH: equant, CFC,
MetricsLith size: 0->0µm;
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
First occurrence (base): within No known fossil record modern (0.00-0.00Ma, base in stage). Data source:

Plot of occurrence data:


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

Knappertsbusch, M. (1993a). Syracosphaera noroiticus sp. nov., and S. marginaporata sp. nov., (Syracosphaeraceae, Prymnesiophyta), new coccolithophorids from the Mediterranean Sea and North Atlantic Ocean. Journal of Micropalaeontology. 12(1): 71-76. gs V O

Supraha, L., Ljubesic, Z. & Henderiks, J. (2018). Combination coccospheres from the Eastern Adriatic coast: New, verified and possible life-cycle associations. Marine Micropaleontology. 141: 23-30. gs


Syracosphaera marginiporata HOL compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 20-10-2020

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Short stable page link: Go to to create a permanent copy of this page - citation notes

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