Nannotax3 - ntax_cenozoic - Ophiaster minimus <title>Nannotax3 - ntax_cenozoic - Ophiaster minimus

Ophiaster minimus


Classification: ntax_cenozoic -> 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
Rank: Species

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

Farinacci & Howe catalog pages: O. minimus [no catalog entry yet]


Morphology:


Size:


Ecology & Biogeography


Biology & life-cycles

Phylogenetic relations

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. (1983b). 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: 29-1-2023

Taxon Search:
Advanced Search
AphiaID: 619038 Nomenclatural data on WoRMS
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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