Classification: ntax_cenozoic -> Mesozoic Survivors -> Chiastozygaceae -> Staurolithites -> Staurolithites primaevus
Sister taxa: S. primaevus, S. sp.
- Bown 2010 pl6-fig3.JPG
Citation: Staurolithites primaevus Bown, 2005Rank: SpeciesTaxonomic discussion: Similar to Mesozoic Staurolithites species but the only Cenozoic representative currently recognised: characterized by small size and compact morphology.
Distinguishing features: Small (<4 µm) elliptical muroliths with narrow bicyclic rim and narrow central area spanned by a small axial cross.
Farinacci & Howe catalog pages: S. primaevus *
The morphological data given here can be used on the advanced search page. See also these notes
|Tags||LITHS: murolith, elliptical, CA: cross-axial, CROSS-POLARS: rim-bicyclic, V-prominent, R-prominent, |
|Metrics||Lith size: 2->4µm; |
Last occurrence (top): within NP11 zone (53.70-54.17Ma, top in Ypresian stage). Data source: Bown, 2005
First occurrence (base): within NP5 zone (59.54-61.51Ma, base in Selandian stage). Data source: [PRB rough estimate]
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: Staurolithites
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
Bown, P. R. (2010). Calcareous nannofossils from the Paleocene/Eocene Thermal Maximum interval of southern Tanzania (TDP Site 14). Journal of Nannoplankton Research. 31(1): 11-38. gs V O
Bown, P. R. (2016). Paleocene calcareous nannofossils from Tanzania (TDP sites 19, 27 and 38). Journal of Nannoplankton Research. 36(1): 1-32. gs V O