Florisphaera profunda var. rhinocera P.S.Quinn, M.Y.Cortés & Bollmann 2005

Publication Details
Florisphaera profunda var. rhinocera P.S.Quinn, M.Y.Cortés & Bollmann 2005: 126, figs. 5-8

Published in: Quinn, P.S., Cortés, M.Y. & Bollmann, J. (2005). Morphological variation in the deep ocean-dwelling coccolithophore Florisphaera profunda (Haptophyta). European Journal of Phycology 40(1): 123-133, 18 figures.

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Publication date: 2005

Type Species
The type species (holotype) of the genus Florisphaera is Florisphaera profunda His.Okada & Honjo.

Status of Name
This name is currently regarded as a synonym of Florisphaera rhinocera (P.S.Quinn, M.Y.Cortés & Bollmann) A.Kahn & M.P.Aubry.

Source of Synonymy
Kahn, A. & Aubry, M.P. (2012). New species of the coccolithophore Florisphaera Okada and Honjo 1973. Micropaleontology 58(3): 209-215, 2 plates.

Type Information
Holotype locality: HOT time series station, Hawaii, North Pacific (Latitude Nº - 22.75, Longitude Wº - 158); (Quinn & al. 2005: 126) Holotype: 5 March 1995; 100 m water depth; (Quinn & al. 2005: 126) Notes: Holotype: Fig. 5, Plankton sample H61-100. Sample stored at Geological Institute, ETH, Zurick, Switzerland.

Origin of Species Name
Adjective (Latin), deep, from a great depth (Dawes & Mathieson 2008).

General Environment
This is a marine species.

Description
Coccosphere composed of ca. 30-100 simple coccoliths. Very delicate. Diameter ca. 7.1-12 microns (mean ca. 9.1 microns). Coccoliths rhombic to almost crescentic or sail-shaped when viewed from proximal or distal surface. Flat or with variable distal convexity along long axis. Straight or slightly curved, smooth to irregular anterior rising gently towards dextral side. Distictive spine on dextral edge of anterior. Spine is usually sharp and of variable length. Sides straight to dextrally curved, usually smooth, tapering towards posterior. Anterior spine is often a continuation of strong lateral thickening on dextral edge. Rare specimens may possess a small spine on dextral edge, projecting in an anterior direction, or a slightly scalloped distal surface. Sinistral edge is only very rarely thickened and may give rise to a very small blunt anterior spine. Posterior usually straight, often thickened, slightly curved and more rarely zig-zagged. Coccoliths with curved edges may possess a weak, rounded dextral projection. Anterior spine and strong dextral asymmetry or curvature should be used to orientate isolated coccoliths. Lenght ca. 1.0-3.8 microns (mean ca. 2.7 microns), width ca. 0.9-3.1 microns (mean ca. 1.9 micons).

Created: 28 August 2006 by G.M. Guiry.

Last updated: 23 May 2025

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Linking to this page: https://www.algaebase.org/search/species/detail/?species_id=131356

Citing AlgaeBase
Cite this record as:
E.A. Molinari Novoa in Guiry, M.D. & Guiry, G.M. 23 May 2025. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 25 May 2025