Zygosphaera marsilii


Classification: Coccolithophores -> Holococcoliths -> flat-topped -> Zygosphaera -> Zygosphaera marsilii
Sister taxa: S. bannockii HOL, Z. amoena, Z. marsilii, Z. sp.,

Taxonomy:

Citation: Zygosphaera marsilii (Borsetti & Cati 1976) Heimdal, 1982
Rank: Species
Basionym: Sphaerocalyptra marsilii Borsetti & Cati 1976
Synonyms:
Notes & discussion: Syracolithus sp. type A of Kleijne (1991) is rather similar to Z. marsilii but monomorphic and with small pyramidal bosses rather than a central ridge

Distinguishing features: Like Coronosphaera mediterranea HOL hellenica type but with three or four well-separated concentric rings of crystallites and low transverse ridge

Farinacci & Howe catalog pages: Sphaerocalyptra marsilii * , ,

Search data:
TagsLITHS: holococcolith, H: cavate, H: disk-like, elliptical, RIM: H: tube (Holos), CA: H: distal-cover, H: distal-cover-flat, H: fabric-concentric,
CSPH: not known, CFC, CFC+bridge, polymorphic, V-UNITS: none, R-UNITS: all, c-str, rim,
MetricsLith size: 1.2->1.6µm; Coccosphere size: 6.5->8.5µm; Liths per sphere: 75->100
Sources: morphom data from Cros & Fortuño (2002) & Kleijne 1991
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 stage). Data source: [JRY rough estimate]

Plot of occurrence data:

  • (NB There is no histogram as there are no occurrence records for the taxon in the Neptune database) Parent: Zygosphaera

    References:

    Borsetti, A. M. & Cati, F. (1976). Il Nannoplancton calcareo vivente nel Tirreno Centro-meridionale. Parte II. Giornale di Geologia. 40(1): 209-240. gs


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    Zygosphaera marsilii compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 22-7-2019

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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=1527 Go to Archive.is to create a permanent copy of this page - citation notes



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