Biantholithus astralis

Classification: ntax_cenozoic -> Coccolith families inc sed -> Coccolith genera inc sed -> Biantholithus -> Biantholithus astralis
Sister taxa: B. astralis, B. flosculus, B. hughesii, B. sparsus, B. sp.


Citation: Biantholithus astralis Steinmetz & Stradner, 1984
Rank: Species

Distinguishing features: Biantholithus with 7-8 visible elements/rays in LM, which are not in contact in their outer part..

Farinacci & Howe catalog pages: B. astralis *

Search data:
TagsLITHS: placolith, circular, CA: closed,
CSPH: equant, monomorphic, CROSS-POLARS: rim-unicyclic, R-prominent,
MetricsLith size: 4->12µm; Segments: 7->8;
Data source notes: lith length from illustrated specimens
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within NP2 zone (64.81-65.47Ma, top in Danian stage). Data source: Steinmetz & Stradner, 1984
First occurrence (base): within NP2 zone (64.81-65.47Ma, base in Danian stage). Data source: Steinmetz & Stradner, 1984

Plot of occurrence data:


Bown, P. R., Gibbs, S. J., Sheward, R., O’Dea, S. & Higgins, D. (2014). Searching for cells: the potential of fossil coccospheres in coccolithophore research. Journal of Nannoplankton Research. 34(special): 5-21. gs V O

Bybell, L. M. & Self-Trail, J. (1995). Evolutionary, biostratigraphic and taxonomic study of calcareous nanofossils from a continuous Palaeocene-Eocene boundary section in New Jersey. U.S. Geological Survey, Professional Paper. 1554: 1-36. gs V O

Steinmetz, J. C. & Stradner, H. (1984). Cenozoic calcareous nannofossils from Deep Sea Drilling Project Leg 75, Southeast Atlantic Ocean. Initial Reports of the Deep Sea Drilling Project. 75: 671-753. gs V O

Stradner, H., Aubry, M. -P. & Bonnemaison, M. (2010). Calcareous nannofossil type specimens in the collection of the Geological Survey of Austria: A taxonomic and stratigraphic update. Jahrbuch der Geologischen Bundesanstalt. 150(1-2): 9-84. gs V O


Biantholithus astralis compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 1-3-2021

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