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.
Bownetal2014_JNR_pl07-7.JPG
Bownetal2014_JNR_pl07-8.JPG
Bownetal2014_JNR_pl07-9.JPG
Bybell & Self-Trail 1995 pl01 01.jpg
Bybell & Self-Trail 1995 pl01 02.jpg
Bybell & Self-Trail 1995 pl01 03.jpg
Bybell & Self-Trail 1995 pl01 04.jpg
Bybell & Self-Trail 1995 pl01 05.jpg
Bybell & Self-Trail 1995 pl01 06.jpg
Bybell & Self-Trail 1995 pl01 07.jpg
Bybell & Self-Trail 1995 pl32 01.jpg
Bybell & Self-Trail 1995 pl32 02.jpg
Bybell & Self-Trail 1995 pl32 03.jpg
Stradner et al 2010_Fig-7b.jpg
Stradner et al 2010_Fig-7c.jpg
Taxonomy:
Citation: Biantholithus astralis Steinmetz & Stradner, 1984Rank: 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:
| Tags | LITHS: placolith, circular, CA: closed,
CSPH: equant, monomorphic, CROSS-POLARS: rim-unicyclic, R-prominent, |
| Metrics | Lith 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:
- 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: Biantholithus
References:
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
