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
Synonyms:
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.

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.

Farinacci & Howe catalog pages: Meringosphaera hydroidea, S. fertii *

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: 22-5-2025

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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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