Classification: ntax_cenozoic -> Holococcoliths -> fossil holococcoliths -> Orthozygus -> Orthozygus sp.
Sister taxa: O. arcus, O. aureus, O. brytika, O. occultus, O. sudis, O. suggrandis, O. sp.
Citation: Orthozygus sp.Rank: generic level id
Distinguishing features: Specimens which cannot be assigned to any established species
Farinacci & Howe catalog pages:
The morphological data given here can be used on the advanced search page. See also these notes
|Metrics||Lith size: 0->0µm; |
Last occurrence (top): within NP23 zone (29.62-32.02Ma, top in Rupelian stage). Data source: same as genus
First occurrence (base): within NP15 zone (42.87-46.29Ma, base in Lutetian stage). Data source: same as genus
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
- (NB There is no histogram as there are no occurrence records for the taxon in the Neptune database) Parent: Orthozygus
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