Taxonomy:
Distinguishing features: BCs simple rings, CFCs with wigwam of 2-4 rods, each with a flange.
Farinacci & Howe catalog pages: W. annulifera *
Size: Cell ca. 5 µm. Liths ca. 1-1.5 µm long.
Biology & life-cycles: HOL = Calciarcus cf. alaskensis Manton Sutherland & Oates 1977, see Thomsen et al. (1991).
See also: Wigwamma annulifera HOL ;
Search data:Tags | LITHS: murolith, elliptical, CA: ca_disjunct, process, diagonal cross, CSPH: equant, elongated, CFC, |
Metrics | Lith size: 1->1.5µm; Data source notes: lith size (BC diameter) from OD |
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:
Manton, I., Sutherland, J. & Oates, K. (1977). Arctic coccolithophorids: Wigwamma arctica gen. et sp. nov. from Greenland and Arctic Canada; W. annulifera sp. nov. from South Africa and S. Alaska and Calciarcus alaskensis gen. et sp. nov. from S. Alaska. Proceedings of the Royal Society of London. 197(1127): 145-168. gs Thomsen, H. A., Ostergaard, J. B. & Heldal, M. (2013). Coccolithophorids in polar waters: Wigwamma spp. revisited. Acta Protozoologica. 52: 237-256. gs V O 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, Special Issue. 1: 1-132. gs V OReferences:
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Wigwamma annulifera compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 1-3-2021
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