Nannotax3 - ntax_cenozoic - Pappomonas borealis

Pappomonas borealis


Classification: ntax_cenozoic -> Coccolith families inc sed -> Papposphaeraceae -> Pappomonas -> Pappomonas borealis
Sister taxa: P. borealis, P. flabellifera, P. garrisonii, P. weddellensis ⟩⟨ P. vexillata, P. sp. type 1, P. sp. type 3, P. sp. type 4, P. sp. type 5, P. sp.

Taxonomy:

Citation: Pappomonas borealis (Manton, Sutherland and McCully 1976) Thomsen & Ostergaard 2014
Rank: Species
Basionym: Pappomonas flabellifera var. borealis Manton, Sutherland and McCully 1976

Taxonomic discussion: Formerly regarded as a variety of P. flabellifera but elevated to species rank by Thomsen & Ostergaard (2014)

Distinguishing features:
Parent taxon (Pappomonas): Coccolith distal rim serrated - elements pentagonal;
Coccosphere polymorphic, processes on only some coccoliths. Calices with 2-fold symmetry
BCs without axial spine or node
This taxon: Similar to P. flabellifera but calyx blades nearly triangular, 5-9 rows of elements in BCs

Farinacci & Howe catalog pages: P. flabellifera borealis *


Morphology: Process triangular with serrated end, described from Greenland. AACs may have extended rim elements but no process (JRY - unpubl obs / see images; also Thomsen & Ostergaard 2014)


Ecology & Biogeography: Only known from the Arctic

Biology & life-cycles:

See also: Pappomonas borealis HOL - haploid phase;

Search data:
TagsLITHS: murolith, elliptical, CA: concentric-ring(s), ca_disjunct, process,
CSPH: equant, CFC,
MetricsLith size: 1.2->1.5µm;
Data source notes: lith size (BC diameter) from Thomsen & Ostergaard. 2014
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: present in the plankton
First occurrence (base): within No known fossil record modern (0.00-0.00Ma, base in "Holocene" stage). Data source: [JRY 2016]

Plot of occurrence data:

References:

Manton, I., Sutherland, J. & McCully, M. (1976a). Fine structural observations on coccolithophorids from South Alaska in the genera Papposphaera Tangen and Pappomonas Manton and Oates. British Phycological Journal. 11: 225-234. gs V O

Thomsen, H. A. & Ostergaard, J. B. (2014b). Coccolithophorids in polar waters: Pappomonas spp. revisited. Acta Protozoologica. 53: 235-256. gs V O

Thomsen, H. A. (2016). Baltic Sea coccolithophores – an overview of insights into their taxonomy and ecology from the last 40 years. Journal of Nannoplankton Research. 36(2): 97-119. gs V O

Thomsen, H. A., Ostergaard, J. B. & Hansen, L. E. (1991). Heteromorphic life histories in Arctic coccolithophorids (Prymnesiophyceae). Journal of Phycology. 27: 634-642. gs

nannotaxlogo400px

Pappomonas borealis compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 24-9-2021

Taxon Search:
Advanced Search

Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=989 Go to Archive.is to create a permanent copy of this page - citation notes
Powered by Mikrotax taxonomy content management system developed by Jeremy Young


Comments (0)

No comments yet on this page. Please do add comments if you spot any problems, or have information to share

Add Comment

* Required information
1000
Captcha Image
Powered by Commentics