Pappomonas flabellifera
Classification: ntax_cenozoic -> 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.
Thomsen-2014 Pappomonas-9.JPG
Thomsen-2014 Pappomonas-8.JPG
Thomsen-2014 Pappomonas-5.JPG
Thomsen-2014 Pappomonas-16.JPG
Young_etal_2003_Pmonas_flabellifera.JPG
MHeldal-8.JPG
Thomsen 2016 baltic pl8-8.JPG
Thomsen 2016 baltic pl8-9.jpg
Thomsen-2014 Pappomonas-10.JPG
Thomsen-2014 Pappomonas-11.JPG
Thomsen-2014 Pappomonas-12.JPG
Thomsen-2014 Pappomonas-13.JPG
Thomsen-2014 Pappomonas-14.JPG
Thomsen-2014 Pappomonas-15.JPG
Thomsen-2014 Pappomonas-17.JPG
Thomsen-2014 Pappomonas-3.JPG
Thomsen-2014 Pappomonas-4.JPG
Thomsen-2014 Pappomonas-6.JPG
Thomsen-2014 Pappomonas-7.JPG
Taxonomy:
Citation: Pappomonas flabellifera Manton & Oates, 1975Rank: SpeciesVariants: AACs have extended rim elements but no process (JRY - unpubl obs / see images)Taxonomic 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:
- Pappomonas flabellifera Manton & Oates 1975 var. flabellifera -process Y-shaped, described from S. Africa. AACs have short process
- Pappomonas flabellifera var. borealis Manton, Sutherland & McCully 1976 - process triangular with serrated end, described from Greenland.
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: P. 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:
| Tags | LITHS: murolith, elliptical, CA: concentric-ring(s), ca_disjunct, grill, process,
CSPH: equant, CFC, |
| Metrics | Lith size: 0.65->0.85µm;
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 (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:
- Range-bar - range as quoted above, pink interval top occurs in, green interval base occurs in.
- Triangles indicate an event for which a precise placement has been suggested
- (NB There is no histogram as there are no occurrence records for the taxon in the Neptune database) Parent: Pappomonas
References:
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 V O
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
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 O
