Semihololithus bicornus


Classification: ntax_mesozoic -> Holococcoliths -> Rarer genera -> Semihololithus -> Semihololithus bicornus
Sister taxa: S. bicornus, S. priscus, S. sp.


Taxonomy:

Citation: Semihololithus bicornus Perch-Nielsen, 1973
Rank: Species
Taxonomic discussion: Spelling correcedfrom bicornis to bicornus by Burnett 1997

Farinacci & Howe catalog pages: S. bicornis *

Search data:
TagsLITHS: holococcolith, elliptical, CA: process, CROSS-POLARS: rim-unicyclic,
MetricsLith size: 3->6µm;
Data source notes: 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 Maastrichtian Stage (66.04-72.05Ma, top in Maastrichtian stage). Data source: Burnett 1998
First occurrence (base): within Maastrichtian Stage (66.04-72.05Ma, base in Maastrichtian stage). Data source: Burnett 1998

Plot of occurrence data:

References:

Burnett, J. A. (1998). Upper Cretaceous. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series. 132-199. gs V O

Perch-Nielsen, K. (1973c). Neue Coccolithen aus dem Maastrichtien von Danemark, Madagaskar und Agypten. Bulletin of the Geological Society of Denmark. 22: 306-333. gs V O

Perez-Rodriguez, I., Lees, J. A., Larasoaña, J. C., Arz, J. A. & Arenillas, I. (2012). Planktonic foraminiferal and calcareous nannofossil biostratigraphy and magnetostratigraphy of the uppermost Campanian and Maastrichtian at Zumaia, northern Spain. Cretaceous Research. 37: 100-126. gs

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Semihololithus bicornus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 24-1-2021

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