Orthozygus brytika


Classification: ntax_cenozoic -> Holococcoliths -> fossil holococcoliths -> Orthozygus -> Orthozygus brytika
Sister taxa: O. arcus, O. aureus, O. brytika, O. occultus, O. sudis, O. suggrandis, O. sp.

Taxonomy:

Citation: Orthozygus brytika (Roth, 1970) Aubry, 1988
Rank: Species
Basionym: Zygosphaera brytika Roth, 1970

Distinguishing features: Small, narrowly-ellliptical non-birefringent holococcolith comprising a narrow rim spanned by diagonal cross-bars.

Farinacci & Howe catalog pages: Z. brytika *

Search data:
TagsLITHS: holococcolith, elliptical, hollow, CA: diagonal cross, CROSS-POLARS: 1ou, V-prominent,
MetricsLith size: 3.5->4.5µm;
Data source notes: lith size from illustrated specs
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within NP23 zone (29.62-32.02Ma, top in Rupelian stage). Data source: Dunkley Jones et al., 2009
First occurrence (base): within NP19-20 zone (34.44-36.97Ma, base in Priabonian stage). Data source: Dunkley Jones et al., 2009

Plot of occurrence data:

References:

Aubry, M. -P. (1988a). Handbook of Cenozoic calcareous nannoplankton. Book 2: Ortholithae (Catinasters, Ceratholiths, Rhabdoliths). Micropaleontology Press, American Museum of Natural History, New York. 1-279. gs

Bown, P. R. (2005d). Palaeogene calcareous nannofossils from the Kilwa and Lindi areas of coastal Tanzania (Tanzania Drilling Project 2003-4). Journal of Nannoplankton Research. 27(1): 21-95. gs V O

Dunkley Jones, T., Bown, P. R. & Pearson, P. (2009). Exceptionally well preserved upper Eocene to lower Oligocene calcareous nannofossils (Prymnesiophycidae) from the Pande Formation (Kilwa Group), Tanzania. Journal of Systematic Palaeontology. 7(4): 359-411. gs

Roth, P. H. (1970). Oligocene calcareous nannoplankton biostratigraphy. Eclogae Geologicae Helvetiae. 63: 799-881. gs V O


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Orthozygus brytika compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 17-4-2021

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=979 Go to Archive.is to create a permanent copy of this page - citation notes



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