Nannotax3 - ntax_main - Ophiaster hydroideus Nannotax3 - ntax_main - Ophiaster hydroideus

Ophiaster hydroideus


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


Taxonomy:
Citation: Ophiaster hydroideus (Lohmann 1903) Lohmann 1913
Taxonomic rank: species
Basionym: Meringosphaera hydroidea * Lohmann 1903
Taxonomic discussion: The distinction from O. formosus, seems tenuous and is not followed by many authors, but in light of the experience from Syracosphaera, it may prove valid on further research.

Synonyms:

Distinguishing features:
Parent taxon (Ophiaster): Appendages formed from strings of highly modified antapical coccoliths, without whorl coccoliths
This taxon: Similar to O. formosus but with more elongate link coccoliths.

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: 0.8->1.5µm; Coccosphere size: 5->7µm; Liths per sphere: 50->100
Data source notes: lith length (BCs) from illustrated specimens; csph data from Cros & Fortuño 2003; lith numbers from Yang & Wei 2003, range inferred from single estimate
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:

Cros, L. & Fortuño, J. -M. (2002). Atlas of northwestern Mediterranean coccolithophores. Scientia Marina. 66: 1-186. gs

Lohmann, H. (1903). Neue Untersuchungen über den Reichthum des Meeres an Plankton und über die Brauchbartkeit der verschiedenen Fangmethoden.Zugleich auch ein Beitrag zur Kenntnis des Mittelmeerauftriebs. Wissenschaftliche Meeresuntersuchungen Abteilung Kiel. 7: 1-87. gs

Malinverno, E., Leoni , B. & Galli, P. (2022). Coccolithophore assemblages and a new species of Alisphaera from the Faafu Atoll, Maldives, Indian Ocean. Marine Micropaleontology. 172(102110): 1-16. gs

Okada, H. & McIntyre, A. (1977). Modern coccolithophores of the Pacific and North Atlantic Oceans. Micropaleontology. 23(1): 1-55. gs

Samtleben, C., et al. (1995). Plankton in the Norwegian-Greenland Sea: from living communities to sediment assemblages - an actualistic approach. Geologische Rundschau. 84: 108-136. gs

Winter, A., Reiss, Z. & Luz, B. (1979). Distribution of living coccolithophore assemblages in the Gulf of Elat ('Aqaba). Marine Micropaleontology. 4: 197-223. gs

Yang, T. -N., Wei, K. & Wu, J. -T. (2012). Marine coccolithophores around Taiwan. Biodiversity Research Center, Academica Sinica, Taipei. 1-96. gs

Young, J. R., Geisen, M., Cros, L., Kleijne, A., Probert, I. & Ostergaard, J. B. (2003). A guide to extant coccolithophore taxonomy. Journal of Nannoplankton Research. S1: 1-132. gs


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Ophiaster hydroideus 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=964 Go to Archive.is to create a permanent copy of this page - citation notes



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