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: Central area with axial cross and low central node
CFC process ca 3.5-5.0 µm high, long and slender with narrow conical calyx of four plates.
Farinacci & Howe catalog pages:
Morphology: NB The coccoliths of this species are similar to those of Papposphaera bourrellii, and Papposphaera sp. type 3 of Cros & Fortuño (2002). They differ essentially in having body coccoliths with a central node rather than a spine.
Size: Coccosphere 12-13 µm; BCs ca.1.0 µm long
|Tags||LITHS: murolith, elliptical, CA: cross-axial, ca_disjunct, process, |
CSPH: equant, CFC,
|Metrics||Lith size: 0.8->1.2µm; Coccosphere size: 12->15µm; Liths per sphere: 20->40|
Data source notes: csph & lith size (BC diameter) from Cros & Fortuño 2002 & slightly extended
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:
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