Nannotax3 - ntax_cenozoic - Hughesius gizoensis

Hughesius gizoensis

Classification: ntax_cenozoic -> Coccolithales -> Coccolithaceae -> Hughesius -> Hughesius gizoensis
Sister taxa: H. gizoensis, H. tasmaniae, H. youngii, H. sp.

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Taxonomy:

Citation: Hughesius gizoensis Varol, 1989

Rank: Species

Taxonomic discussion: The Oligocene species Coccolithus primalis Roth 1970 is similar and arguably a senior synonym.

Distinguishing features: Very small species of Hughesius (<4µm), with 2 rounded plates in central-area, separated by transverse suture.

Farinacci & Howe catalog pages: H. gizoensis *

Search data:

Tags	LITHS: placolith, elliptical, CA: ca_disjunct, plate, closed, CSPH: equant, monomorphic, CROSS-POLARS: rim-unicyclic, V-prominent, R-prominent,
Metrics	Lith size: 2->4µm;

The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Notes: : A very widespread small species, occurs in most Miocene samples although rarely at high abundance.
Last occurrence (top): within NN11 zone (5.59-8.29Ma, top in Messinian stage). Data source: Young 1998
First occurrence (base): within NN2 zone (19.00-22.82Ma, base in Aquitanian stage). Data source: Young 1998

Plot of occurrence data:

Range-bar - range as quoted above, pink interval top occurs in, green interval base occurs in.
Triangles indicate an event for which a precise placement has been suggested
Histogram - Neptune occurrence data from DSDP and ODP proceedings. Pale shading <50 samples in time bin. Interpret with caution & read these notes
Taxon plotted: Hughesius gizoensis, synonyms included - Hughesius gizoensis;
See also space-time plot :: Samples map :: Parent: Hughesius

References:

Bown, P. R. & Dunkley Jones, T. (2012). Calcareous nannofossils from the Paleogene equatorial Pacific (IODP Expedition 320 Sites U1331-1334). Journal of Nannoplankton Research. 32(2): 3-51. gs V O

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

de Kaenel, E. & Villa, G. (1996). Oligocene-Miocene calcareous nannofossil biostratigraphy and paleoeecology from the Iberian Abyssal Plain. Proceedings of the Ocean Drilling Program, Scientific Results. 149: 79-145. gs V O

Varol, O. (1989a). Calcareous nannofossil study of the central and western Solomon Islands. Circum-Pacific Council for Energy and Mineral Resources Earth Sciences. 239-268. gs V O

Young, J. R. (1998). Neogene. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series. 225-265. gs V O

Hughesius gizoensis compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 28-2-2021

Taxon Search:

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=741 Go to Archive.is to create a permanent copy of this page - citation notes

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