Nannotax3 - ntax_main - Ophiaster minimus Nannotax3 - ntax_main - Ophiaster minimus

Ophiaster minimus


Classification: ntax_main -> Syracosphaerales -> Syracosphaeraceae -> Ophiaster -> Ophiaster minimus
Sister taxa: O. macrospinus, O. formosus, O. hydroideus, O. reductus, O. minimus, O. formosus var. inversus, O. sp.


Taxonomy:
Citation: Ophiaster minimus Manton & Oates 1983
Taxonomic rank: species
Basionym: Ophiaster minimus * Manton & Oates 1983

Synonyms:

Distinguishing features:
Parent taxon (Ophiaster): Appendages formed from strings of highly modified antapical coccoliths, without whorl coccoliths
This taxon: Very small (coccosphere ca. 3.5 µm). BCs simple rings, without central structures. Proximal link liths distinctive, diamond shaped with diagonal bar. CFCs with short spine supported by axial cross

Search data:
LITHS: murolith, elliptical, CA: ca_disjunct, grill, process,
CSPH: equant, elongated, AAC, appendages, CFC, XC, CROSS-POLARS: R-prominent, T-prominent,
Lith size: 0.7->1.5µm; Coccosphere size: 5->7µm;
Data source notes: csph & lith length (BCs) from illustrated specimens
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 "Holocene" stage). Data source: [JRY rough estimate]

Plot of occurrence data:

References:

Manton, I. & Oates, K. (1983). Nanoplankton from the Galapagos Islands: Two genera of spectacular coccolithophorids (Ophiaster and Calciopappus) with special emphasis on unmineralized periplast components. Philosophical Transactions of the Royal Society of London. 300: 435-462. gs


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Ophiaster minimus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 21-7-2026

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=965 Go to Archive.is to create a permanent copy of this page - citation notes



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