Farinacci & Howe catalog pages: V. stellata *
Morphology: Coccosphere ca 10 x 5 µm with ca 12 CFCs
BCs - oval ca 1.0 x 0.4 µm; rim narrow with slightly vaulted axial cross; low central spine supports flat cross-shaped calyx. Rim formed of single cycle of rod-shaped elements.
CFCs - base similar to BCs, spine elevated and with axe-like blade aligned paraell to short axis of coccolith.
Ecology & Biogeography: Low latitude species, probably mid/lower-photic, rare. Recorded from NW Mediterranean and E. Indian Ocean
Biology & life-cycles: Holococcolith phase not identified
Phylogenetic relations: The base is rather similar to that of Wigwamma whilst the process is more like those of Pappomonas supporting the broader concept of the Papposphaeraceae.
|Tags||LITHS: murolith, elliptical, CA: cross-axial, ca_disjunct, process, |
CSPH: equant, elongated, CFC,
|Metrics||Lith size: 0.6->1µm; Coccosphere size: 9->11µm; |
Data source notes: csph & lith size (BC diameter) from OD
Last occurrence (top): Extant Data source: present in the plankton (Thomsen et al. 2015)
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:
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