Homozygosphaera


Classification: ntax_cenozoic -> Holococcoliths -> bridged -> Homozygosphaera
Sister taxa: Corisphaera, Helladosphaera, Homozygosphaera, Poritectolithus, S. anthos HOL

Daughter taxa (time control age-window is: 0-800Ma)
Homozygosphaera spinosa
Like H. arethusae but bridge higher (taller than coccolith length) and narrower.
Homozygosphaera triarcha
Like H. arethusae but bridge has three struts (Y-shaped in plan view) and supports spine.
Syracosphaera arethusae HOL
BCs bridge smooth continuation of tube, wide and broad arch, broadens toward top, as high as lith is long. CFCs with slightly higher bridge.
Homozygosphaera sp.
Specimens which cannot be assigned to established species

Taxonomy:

Citation: Homozygosphaera Deflandre, 1952
Rank: Genus
Type species: Corisphaera spinosa Kamptner, 1941

Distinguishing features: Monomorphic; coccoliths with tube spanned by bridge.

Farinacci & Howe catalog pages: Homozygosphaera *

Search data:
TagsLITHS: holococcolith, elliptical, hollow, CA: bar,
CSPH: equant, monomorphic, CROSS-POLARS: R-prominent, T-prominent,
MetricsLith size: 1.4->3µm; Coccosphere size: 6->15µm;
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:

References:

Deflandre, G. (1952). Classe des Coccolithophoridés. (Coccolithophoridae. Lohmann, 1902). In, Grassé, P. P. (ed.) Traité de Zoologie. Masson, Paris 439-470. gs


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Homozygosphaera compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 13-4-2021

Taxon Search:
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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=727 Go to Archive.is to create a permanent copy of this page - citation notes



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