Pappomonas flabellifera

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


Citation: Pappomonas flabellifera Manton & Oates, 1975
Rank: Species
Variants: AACs have extended rim elements but no process (JRY - unpubl obs / see images)
Notes & discussion: Manton et al. (1976) divided the species into two varieties based on the form of the blades on the process and their geographical distribution:
Thomsen & Ostergaard 2014 separated these two forms as discrete species, based on these characters and smaller size of P. borealis body coccoliths.

Distinguishing features: Central area with concentric rings of crystallites;
CFC process ca. 2 µm high, with long stem supporting two blades.

Farinacci & Howe catalog pages: Pappomonas flabellifera [no catalog entry yet]

Size: Cell 4-6 µm; BCs 1-1.5 µm long

Ecology & Biogeography: Occurs in Arctic and Antarctic (Thomsen & Ostergaard 2014)

Biology & life-cycles: No combination coccospheres observed but Thomsen & Ostergaard (2014) suggest that the  holococcolith stge is most likely to be Trigonaspis minutissima, based on biogoegraphy.

See also: Trigonaspis minutissima - possible haploid phase;

Search data:
TagsLITHS: murolith, elliptical, RIM: outer wall non-imbricate, rim-narrow, rim-top crenulate, CA: concentric-ring(s), grill, process, PROCESS: calyx, spine, x-section-flat,
CSPH: oblate (broad), spherical, equant, CFC, CFC+process, polymorphic, DETAILS: ca_disjunct,
MetricsLith size: 0.65->0.85µm;
Sources: 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 (Young et al. 2003)
First occurrence (base): within No known fossil record modern (0.00-0.00Ma, base in stage). Data source: [JRY rough estimate]

Plot of occurrence data:

  • (NB There is no histogram as there are no occurrence records for the taxon in the Neptune database) Parent: Pappomonas


    Manton, I. & Oates, K. (1975). Fine-structural observations on Papposphaera Tangen from the Southern Hemisphere and on Pappomonas gen. nov. from South Africa and Greenland. British Phycological Journal. 10(1): 93-109. gs :: ::

    Manton, I., Sutherland, J. & McCully, M. (1976). 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 :: ::

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

    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 :: view :: open

    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 :: view :: open


    Pappomonas flabellifera compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 9-7-2020

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    Short stable page link: Go to to create a permanent copy of this page - citation notes

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