Orthozygus suggrandis


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

Taxonomy:

Citation: Orthozygus suggrandis Bown & Dunkley Jones, 2006
Rank: Species

Distinguishing features: A large, coarsely constructed, elliptical holococcolith with a central area spanned by a transverse, bridge-like structure that broadens at each end. The rim and bridge are crystallographically disjunct.

Farinacci & Howe catalog pages: O. suggrandis *

Search data:
TagsLITHS: holococcolith, elliptical, hollow, CA: ca_disjunct, bar, CROSS-POLARS: V-prominent,
MetricsLith size: 6->8µm;
Data source notes: lith size from OD & extended slightly
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within NP15c subzone (42.87-44.12Ma, top in Lutetian stage). Data source: Bown & Dunkley Jones, 2006
First occurrence (base): within NP15c subzone (42.87-44.12Ma, base in Lutetian stage). Data source: Bown & Dunkley Jones, 2006

Plot of occurrence data:

References:

Bown, P. R. & Dunkley Jones, T. (2006). New Paleogene calcareous nannofossil taxa from coastal Tanzania: Tanzania Drilling Project Sites 11 to 14. Journal of Nannoplankton Research. 28(1): 17-34. gs V O

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Orthozygus suggrandis compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 20-4-2021

Taxon Search:
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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=983 Go to Archive.is to create a permanent copy of this page - citation notes
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