Nannotax3 - ntax_cenozoic - Vexillarius Nannotax3 - ntax_cenozoic - Vexillarius

Vexillarius


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

Daughter taxa (time control age-window is: 0-800Ma)
Vexillarius cancellifer
Process flaring distally.
Vexillarius cereus
Process spine-like, tapering.
Vexillarius iaculifer
Process lozenge-shaped; maximum width about half-way up process.
Vexillarius sp. 1
Process very long, parallel-sided, spine
Vexillarius acerviphora
Process narrow, weakly tapering; c-area with axial plate.
Vexillarius sp.
Specimens which cannot be assigned to established species

Taxonomy:

Citation: Vexillarius Jordan & Chamberlain, 1993
taxonomic rank: Genus
Type species: Vexillarius cancellifer Jordan & Chamberlain, 1993
Synonyms:

Distinguishing features:
Parent taxon (Papposphaeraceae): Narrow-rimmed muroliths, mostly with prominent central structures.
This taxon: Coccosphere dimorphic. CFCs (and some dispersed liths) with quadrate central process supported by transverse bar.
BCs open or with concetric/longitudinal bars.

Farinacci & Howe catalog pages: Vexillarius, Porsildia *


Morphology:

Process is capped by a quadrate structure formed of four laths. Detailed description is given by Jordan & Chamberlain (1992) and species are discussed in  Andruleit & Jordan 2017

Search data:
LITHS: murolith, elliptical, CA: ca_disjunct, process,
CSPH: equant, elongated, BC-dimorphic,
Lith size: 0.5->1µm;
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 (0.00-0.00Ma, base in "Holocene" stage). Data source: Total of ranges of species in this database

Plot of occurrence data:

References:

Andruleit, A. & Jordan, R. W. (2016). Further observations on Vexillarius cancellifer Jordan & Chamberlain. Revue de Micropaléontologie. 59: 227-231. gs

Andruleit, H. & Jordan, R. W. (2017). Two new species of Vexillarius (Prymnesiophyceae) from the eastern Indian Ocean. Phycologia. 56(5): 510-516. gs

Jordan, R. W. & Chamberlain, A. H. L. (1992). Vexillarius cancellifer gen. et sp. nov., and its possible affinities with other living coccolithophorids. In, Hamrsmid, B. & Young, J. R. (eds) Nannoplankton Research, Proceedings of the 4th INA Conference, Prague 1991, vol II. Knihovnicka ZPN . 14b: 305-325. gs

Thomsen, H. A. & Ostergaard, J. B. (2015). Coccolithophorids in Polar Waters: Mercedesia gen. nov., Ericiolus, Quaternariella and Porsildia gen. nov. Acta Protozoologica. 54: 155-169. gs


nannotaxlogo400px

Vexillarius compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 22-5-2024

Taxon Search:
Advanced Search

Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=1485 Go to Archive.is to create a permanent copy of this page - citation notes
nannotaxlogo400px

Nannotax is being sponsored through 2024 by Woodside Energy and Shell USA


Add Comment

* Required information
Captcha Image
Powered by Commentics

Comments

No comments yet. Be the first!