Nannotax3 - ntax_cenozoic - Calciarcus alaskensis morphotype 3 Nannotax3 - ntax_cenozoic - Calciarcus alaskensis morphotype 3

Calciarcus alaskensis morphotype 3


Classification: ntax_cenozoic -> Holococcoliths -> tubeless -> tubeless-minute -> Calciarcus -> Calciarcus alaskensis -> Calciarcus alaskensis morphotype 3
Sister taxa: C. alaskensis morphotype 1, C. alaskensis morphotype 2, C. alaskensis morphotype 3

Taxonomy:

Citation: Calciarcus alaskensis morphotype 3 Thomsen & Ostergaard 2014
taxonomic rank: type

Distinguishing features:
Parent taxon (Calciarcus alaskensis): Scales ca. 0.5 µm across, with 3 or 4 calcified struts forming a wigwam-like structure
This taxon: 3–4 struts, rising 0.5-1.25 µm above base plate & ending in blunt spine.

Farinacci & Howe catalog pages:


Biology & life-cycles

A combination coccosphere of Calciarcus cf. alaskensis with Wigwamma cf. annulifera was illustrated by Thomsen et al. 1991 and several combination coccospheres of Wigwamma sp. with Calciarcus sp. were shown by Thomsen et al. 2013. All the Calciarcus specimens in these combination coccospheres would fall in the broad Calciarcus aff. alaskensis concept

Search data:
Lith 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:
First occurrence (base): within No known fossil record modern (0.00-0.00Ma, base in "Holocene" stage). Data source:

Plot of occurrence data:

References:

Thomsen, H. A. & Ostergaard, J. B. (2014). Coccolithophorids in polar waters: Calciarcus spp. revisited. Acta Protozoologica. 53(145-157): -. gs

Thomsen, H. A., Buck, K. R., Coale, S. L., Garrison, D. L. & Gowing, M. M. (1988). Nanoplanktonic coccolithophorids (Prymnesiophyceae, Haptophyceae) from the Weddell Sea, Antarctica. Nordic Journal of Botany. 8: 419-436. gs


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Calciarcus alaskensis morphotype 3 compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 15-12-2024

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=1798 Go to Archive.is to create a permanent copy of this page - citation notes
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