Nannotax3 - ntax_cenozoic - Syracolithus bicorium Nannotax3 - ntax_cenozoic - Syracolithus bicorium

Syracolithus bicorium

Classification: ntax_cenozoic -> Holococcoliths -> septate -> Syracolithus bicorium
Sister taxa: C. leptoporus subsp. quadriperforatus HOL, S. apsteinii HOL, P. japonica HOL, S. sp. type A, S. sp. type B, S. bicorium


Citation: Syracolithus bicorium Kleijne, 1991
Rank: Species

Distinguishing features:
Parent taxon (septate): Holococcoliths with tube, open distally and subdivided internally by vertical septae
This taxon: Liths similar to S. quadriperforatus but walls double layered with open hexagonal mesh fabric.

Farinacci & Howe catalog pages: S. bicorium *

Search data:
LITHS: holococcolith, elliptical, CA: pores,
CSPH: equant, monomorphic,
Lith size: 1.7->2.5µm;
Data source notes: lith size from OD
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:


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


Syracolithus bicorium compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 26-3-2023

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

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