Classification: ntax_cenozoic -> Coccolith families inc sed -> Coccolith genera inc sed -> Biantholithus -> Biantholithus flosculus
Sister taxa: B. astralis, B. flosculus, B. hughesii, B. sparsus, B. sp.
- Bown 2010 pl12-fig13.JPG
Citation: Biantholithus flosculus Bown 2005 Rank: SpeciesTaxonomic discussion: Tentatively included within Biantholithus
Distinguishing features: Medium sized circular, rossette shaped nannolith with 11-16 radial rays. Weakly birefringent in XPL.
Farinacci & Howe catalog pages: B. flosculus *
Size: Diameter 4.5-6.3µm
The morphological data given here can be used on the advanced search page. See also these notes
|Tags||LITHS: placolith, circular, CA: closed, |
CSPH: equant, monomorphic, CROSS-POLARS: rim-unicyclic, R-prominent,
|Metrics||Lith size: 4->6µm; Segments: 11->12; |
Data source notes: lith length from OD and slightly extended
Last occurrence (top): within NP9 zone (55.86-57.21Ma, top in Ypresian stage). Data source: Bown 2005
First occurrence (base): within NP6 zone (58.97-59.54Ma, 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
- Histogram - Neptune occurrence data from DSDP and ODP proceedings. Pale shading <50 samples in time bin. Interpret with caution & read these notes
- Taxon plotted: Biantholithus flosculus, synonyms included - Biantholithus flosculus;
- See also space-time plot ::
Samples map :: Parent: Biantholithus
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