Nannotax3 - ntax_cenozoic - Pappomonas sp. type 4 Nannotax3 - ntax_cenozoic - Pappomonas sp. type 4

Pappomonas sp. type 4


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

Taxonomy:

Citation: Pappomonas sp. type 4 Cros & Fortuño, 2002
taxonomic rank: type

Distinguishing features:
Parent taxon (Pappomonas): Coccolith distal rim serrated - elements pentagonal;
Coccosphere dimorphic or trimorphic. Processes only on CFCs coccoliths. Calices with 2-fold symmetry
BCs without axial spine or node

This taxon: Central area with two concentric rings and transverse bar
CFC process ca. 2.5 µm high, straight without apical structure, additional ?CFCs have shorter spines (ca. 0.5 µm).

Farinacci & Howe catalog pages:


Size:
Coccosphere ca. 6 µm; BCs 1 µm long

Search data:
LITHS: murolith, elliptical, CA: concentric-ring(s), ca_disjunct, vacant, process,
CSPH: equant, CFC,
Lith size: 0.8->1.2µm; Coccosphere size: 5->7µm; Liths per sphere: 100->120
Data source notes: csph & lith size (BC diameter) from Cros & Fortuño 2002 & slightly extended
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:

References:

Cros, L. & Fortuño, J. -M. (2002). Atlas of northwestern Mediterranean coccolithophores. Scientia Marina. 66: 1-186. gs

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. S1: 1-132. gs


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Pappomonas sp. type 4 compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 21-4-2024

Taxon Search:
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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=1000 Go to Archive.is to create a permanent copy of this page - citation notes
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