Nannotax3 - ntax_cenozoic

Formonsella

Classification: ntax_cenozoic -> Coccolith families inc sed -> Papposphaeraceae -> Formonsella
Sister taxa: Balaniger, Formonsella, Kataspinifera, Pappomonas, Papposphaera, Picarola, Pocillithus, Pseudowigwamma, Quaternariella, Ventimolina, Vexillarius, Wigwamma

Daughter taxa (time control age-window is: 0-800Ma)

Formonsella pyramidosa

BCs central area with continuous cover of rather irregular plates;
CFC process ca. 2.3 µm high with broad conical calyx of four plates with finely serrated margin, base with cross-bars.

Taxonomy:

Citation: Formonsella Thomsen, Cros, Malinverno, Ostergaard, Cortés, Geisen & Young

Rank: Genus

Type species: Formonsella pyramidosa Thomsen, Cros, Malinverno, Ostergaard, Cortés, Geisen & Young 2016

Distinguishing features: Coccolith distal rim weakly serrated - elements imbricate rods;
Coccosphere dimorphic - BCs with irregular tiles & calicate coccoliths with conical calices

Farinacci & Howe catalog pages: Formonsella [no catalog entry yet]

Search data:

Tags	LITHS: murolith, elliptical, CA: ca_disjunct, process, CSPH: equant, BC-dimorphic,
Metrics	Lith size: 0.6->1.1µm; Coccosphere size: 8->10µm;

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: Total of range of species in this database
First occurrence (base): at top of No known fossil record modern (100% up, 0Ma, in "Holocene" stage). Data source: Total of range of species in this database

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
Neptune data: This is a higher taxon page so Neptune data is not plotted. See also: customisable plot Parent: Papposphaeraceae

References:

Thomsen, H. A. et al. (2016a). Formonsella pyramidosa (Haptophyta, Papposphaeraceae): a new weakly calcified coccolithophore genus from warm-water regions. Journal of Micropalaeontology. 35: 125-132. gs V O

Formonsella compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 11-4-2021

Taxon Search:

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=593 Go to Archive.is to create a permanent copy of this page - citation notes

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