Nannotax3 - ntax_cenozoic - Calciosolenia murrayi Nannotax3 - ntax_cenozoic - Calciosolenia murrayi

Calciosolenia murrayi


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

Taxonomy:

Citation: Calciosolenia murrayi Gran, 1912
taxonomic rank: Species
Synonyms:
Variants: Malinverno 2004 recognised four types within C. murrayi based primarily on the sepration of the laths in the central area of the body coccoliths She interpreted this variation as most likely being a case of variable degree of calcification, since the types intergraded and coccospheres with more than coccolith type can occur.

Distinguishing features:
Parent taxon (Calciosolenia): Coccosphere with rhombic muroliths with central area floored by transverse laths (scapholiths); varimorphic or dimorphic.
This taxon: Dimorphic - terminal coccoliths have one end extended into spine; coccoliths 2.5-4 µm long, often with overlapping laths

Farinacci & Howe catalog pages: C. murrayi * , A. mediterranea * , C. sinuosa * , C. compacta *


Morphology:

Coccosphere dimorphic, broad, tapering rather abruptly at ends with only a few elongate liths. Terminal liths have one end extended into spine. Bars not very regular and often merge into continuous sheet. Liths 2.5-4 µm long, spines up to 25 µm, coccospheres up to 30 µm.
For identification note that the liths usually are smaller than an E. huxleyi coccolith and/or have overlapping laths.

Size:
Liths 2.5-4 µm long, spines up to 25 µm, coccospheres up to 30 µm.

Search data:
LITHS: murolith, quadrate, CA: ca_disjunct, grill,
CSPH: tubular, AAC, CFC, CROSS-POLARS: rim-bicyclic, V-prominent, R-prominent,
Lith size: 2.5->4µm; Coccosphere size: 20->35µm; Liths per sphere: 120->250
Data source notes: csph & lith size from Malinverno 2004 & my obs [JRY]; csph data from Cros & Fortuño 2003; lith numbers from Yang & Wei 2003, range of estimates
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Notes: Frequently recorded in the fossil record, but mainly as a default identification.
Last occurrence (top): Extant. Data source: present in the plankton (Young et al. 2003)
First occurrence (base): within Paleocene Epoch (55.96-66.04Ma, base in Danian stage). Data source: [JRY rough estimate]

Plot of occurrence data:

References:

Andruleit, H., Rogalla, U. & Staeger, S. (2005). Living coccolithophores recorded during the onset of upwelling conditions off Oman in the western Arabian Sea. Journal of Nannoplankton Research. 27(1): 1-14. gs

Bernard, F. (1939). Coccolithophorides nouveaux ou peu connus observes à Monaco en 1938. Archives de Zoologie Expérimentale et Générale, Paris. 81: 33-44. gs

Cerino, F., Malinverno, E., Fornasaro, D., Kralj, M. & Cabrini, M. (2017). Coccolithophore diversity and dynamics at a coastal site in the Gulf of Trieste (northern Adriatic Sea). Estuarine Coastal and Shelf Science. 196: 331-345. gs

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

Gran, H. H. (1912). Pelagic plant life. In, Murray, J. & Hjort, J. (eds) The Depths of the Ocean. Macmillan, London 307-386. 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

Manton, I. & Oates, K. (1985). Calciosoleniaceae (coccolithophorids) from the Galapagos Island: unmineralized components and coccolith morphology in Anoplosolenia and Calciosolenia, with comparative analysis of equivalents in the unmineralized genus Navisolenia (Haptophyceae = Prymnesiophyceae). Philosophical Transactions of the Royal Society of London. 309: 461-477. gs

Schlauder, J. (1945). Recherches sur les flagellés calcaires de la Baie d'Alger. PhD thesis, Université d'Alger. 1-51. gs

Yang, T. -N., Wei, K. & Wu, J. -T. (2012). Marine coccolithophores around Taiwan. Biodiversity Research Center, Academica Sinica, Taipei. 1-96. 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


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Calciosolenia murrayi compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 15-4-2024

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