CATALOG - Syracosphaera oneillii


Folder trail: ntax_Farinacci -> S -> Syracosphaera -> Syracosphaera oneillii
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Original descriptions of taxa. For coccolithophores, and many calcispheres, these are pages from the Catalog of Calcareous Nannofossils. In other cases (e.g. non-calcifying haptophytes) the data is directly compiled on this site. The "Catalogue of Calcareous Nannofossils" was compiled by Prof A. Farinacci 1969-1989 and updated by Richard Howe 2000-2016 - see also this page.
Taxa are sorted alphabetically for simple browsing, or you can use search boxes at the top & bottom of the page




Current identification/main database link: Syracosphaera? oneillii da Gama & Varol 2013

Compiled data

Citation: Syracosphaera? oneillii da Gama & Varol 2013
Rank: Species
Type locality: Mozambique Channel, W. Indian Ocean
Type age (chronostrat): Zone NN9, Late Miocene
Standardised type level: 123_UPPER MIOCENE
Type sample (& lithostrat): DSDP, Site 242-6-CC
Type specimens: Plate 1, figures 7-8, 11-12, 16, 20
Type repository: authors' collections
Repository Country: USA
Farinacci catalog page (& compiler): n/a
Current citation: Syracosphaera? oneillii da Gama & Varol 2013


Original Description
Diagnosis: Small elliptical coccolith consisting of a non-birefringent outer cycle and birefringent inner cycle.

Description: This elliptical coccolith is made up of two cycles of elements. The outer cycle is non-birefringent whilst the inner cycle is birefringent. No structure was observed in the central area. Examination under SEM is necessary to understand the true structure of this small species.

Etymology: In honour of the late Dr. Brian J. O'Neill, colleague, Shell international E&P, Houston, Texas, USA

Extra details from original publication
Remarks: An influx of this small species was recorded between NN7 and lower NN10 in all studied locations.

Occurrence: This species is restricted to Zones NN7-NN10 where it is in great abundance. Syracosphaera? oneillii is observed in sediments from the Philippines, Vietnam, Malaysia, Indonesia, the Gulf of Aden, West Africa, Brazil and Trinidad.

References:

da Gama, R. O. B. P. & Varol, O. (2013). New Late Oligocene to Miocene Species. Journal of Nannoplankton Research. 33(1): 1-12. gs V O


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Syracosphaera oneillii: Catalog entry compiled by Jeremy Young. Viewed: 5-8-2021

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