Nannotax3 - ntax_cenozoic - Wigwamma Nannotax3 - ntax_cenozoic - Wigwamma

Wigwamma


Classification: ntax_cenozoic -> Coccolith families inc sed -> Papposphaeraceae -> Wigwamma
Sister taxa: Papposphaera, Pappomonas, Balaniger, Formonsella, Quaternariella ⟩⟨ Ventimolina, Wigwamma, Pseudowigwamma ⟩⟨ Kataspinifera, Picarola, Vexillarius, Pocillithus

Daughter taxa (time control age-window is: 0-800Ma)
Wigwamma annulifera
BCs simple rings, CFCs with wigwam of 2-4 rods, each with a flange.
Wigwamma antarctica
Dimorphic. BCs simple rings,
CFCs with wigwam of 2-4 rods, without flanges, one rod projects as a spine beyond tip of wigwam, poles of two types two broad (wing-like) and two narrow.
Wigwamma arctica
Monomorphic, all liths with wigwam of 4 rods.
Wigwamma armatura
Dimorphic. BCs simple rings, CFCs with wigwam of 4 similar rods, without flanges, rods project as tuft of spines beyond tip of wigwam
Wigwamma triradiata
Dimorphic. BCs have low wigwam of three struts;
CFCs high wigwam of two struts each with wing.
Wigwamma sp.
Specimens which cannot be assigned to established species

Taxonomy:

Citation: Wigwamma Manton et al., 1977
Rank: Genus
Type species: Wigwamma arctica Manton et al. 1977
Taxonomic discussion: Wigwamma was excluded from the Papposphaeraceae by Andruleit & Young (2010) and is only very tentatively included here.

Distinguishing features:
Parent taxon (Papposphaeraceae): Narrow-rimmed muroliths, mostly with prominent central structures.
This taxon: Coccoliths hoop-shaped with rods rising from rim to form wigwam-like structure

Farinacci & Howe catalog pages: Wigwamma *


Biology & life-cycles

Combination coccopheres of Wigwamma and Calciarcus have been observed (Thomsen et al 1991 and Thomsen et al. 2013), although definitive associations between Wigwamma species and Calciarcus annulifera morphtoypes have not been established.

Search data:
LITHS: murolith, elliptical, CA: ca_disjunct, process, diagonal cross,
CSPH: equant, elongated, CFC,
Lith size: 0.7->2.2┬Ám;
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: Total of ranges of the species in this database
First occurrence (base): within No known fossil record modern (0-0Ma, base in "Holocene" stage). Data source: Total of ranges of species in this database

Plot of occurrence data:

References:

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


nannotaxlogo400px

Wigwamma compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 29-11-2023

Taxon Search:
Advanced Search

Short stables page link: https://mikrotax.org/Nannotax3/index.php?id=1494 Go to Archive.is to create a permanent copy of this page - citation notes



Add Comment

* Required information
Captcha Image
Powered by Commentics

Comments

No comments yet. Be the first!