Nannotax3 - ntax_cenozoic - Calciosolenia corsellii Nannotax3 - ntax_cenozoic - Calciosolenia corsellii

Calciosolenia corsellii


Classification: ntax_cenozoic -> Syracosphaerales -> Calciosoleniaceae -> Calciosolenia -> Calciosolenia corsellii
Sister taxa: C. brasiliensis, C. corsellii, C. murrayi ⟩⟨ C. alternans, C. aperta, C. sp.

Taxonomy:

Citation: Calciosolenia corsellii Malinverno, 2004
taxonomic rank: Species
Variants:
Taxonomic discussion: This species has probably often been included in C. brasiliensis

Distinguishing features:
Parent taxon (Calciosolenia): Coccosphere with rhombic muroliths with central area floored by transverse laths (scapholiths); varimorphic or dimorphic.
This taxon: Coccosphere without spines; coccoliths 3-4µm long, with spurs at the ends

Farinacci & Howe catalog pages: C. corsellii * , Calciosolenia subtropicus


Morphology:

Coccosphere similar to C. brasiliensis but coccoliths more like those of C. murrayi in size (3-4µm long), number of laths, and in presence of spurs at the ends of the coccoliths. The spurs are often best developed toward the ends of the coccosphere and maybe missing orrudimentary on the coccoliths near the middle of the coccosphere.
For identification note that the liths usually are similar in size to an E. huxleyi coccolith and have separated laths.

Size:
Liths 3-4µm long


Ecology & Biogeography

Described from the Mediterranean but also certainly occurs in the Atlantic (Young unpubl. obs.) and probably globally

Search data:
LITHS: murolith, quadrate, CA: ca_disjunct, grill,
CSPH: tubular, monomorphic, CROSS-POLARS: rim-bicyclic, V-prominent, R-prominent,
Lith size: 3->4µm; Coccosphere size: 35->40µm;
Data source notes: csph & lith size from OD of Malinverno 2004
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:

References:

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

Malinverno, E. (2004). Morphological variability within the genus Calciosolenia (coccolithophorids) from the eastern Mediterranean Sea. Micropaleontology. 50(supl. 1): 81-91. gs

Malinverno, E., Leoni , B. & Galli, P. (2022). Coccolithophore assemblages and a new species of Alisphaera from the Faafu Atoll, Maldives, Indian Ocean. Marine Micropaleontology. 172(102110): 1-16. gs

Patil, S., Mohan, R., Jafar, S. A., Gazi, S., Choudhari, P. & Crosta, X. (2020a). The coccolithophore family Calciosoleniaceae with report of a new species: Calciosolenia subtropicus from the southern Indian Ocean . Micropaleontology. 65(5): 459-471. gs

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Calciosolenia corsellii compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 12-10-2024

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Comments (1)

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Ines Galovic(Croatia)
In our article smaller forms (fig. 15-16) are also presented with spurs which is a consequence of warm and oligotroph water. Larger specimens without spurs are more characreristic for transition (of climate, current mixing, water exchanges, flooding, more nearshore influences, seasonality...)