Nannotax3 - ntax_mesozoic - Bifidalithus geminicatillus

Bifidalithus geminicatillus


Classification: ntax_mesozoic -> Holococcoliths -> Rarer genera -> Bifidalithus -> Bifidalithus geminicatillus
Sister taxa: B. geminicatillus, B. mchanae, B. sp.

Distinguishing features:
Parent taxon (Bifidalithus): Holococcoliths formed from two blocks divided by a transverse suture.
This taxon: Narrow rim around edge of blocks, no pore


Taxonomy:

Citation: Bifidalithus geminicatillus Varol, 1991
Rank: Species

Farinacci & Howe catalog pages: B. geminicatillus *

Distinguishing features:
Parent taxon (Bifidalithus): Holococcoliths formed from two blocks divided by a transverse suture.
This taxon: Narrow rim around edge of blocks, no pore


Morphology:


Size:


Ecology & Biogeography


Biology & life-cycles

Phylogenetic relations

Search data:
LITHS: holococcolith, elliptical, quadrate, CA: ca_disjunct, CROSS-POLARS: rim-unicyclic, V-prominent,
Lith size: 5->7µm; Segments: 2->2;
Data source notes: holotype +/-1µm
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within Campanian Stage (72.05-83.64Ma, top in Campanian stage). Data source: Burnett 1998
First occurrence (base): within Campanian Stage (72.05-83.64Ma, base in Campanian 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 O

Lees, J. A. & Schueth, J. (2020). Taxonomic note – New Upper Cretaceous nannofossil taxa from the Turonian of New Mexico, USA. Journal of Nannoplankton Research. 30(1): 81-82. gs V O

Varol, O. (1991). New Cretaceous and Tertiary Calcareous Nannofossils. Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen. 182: 211-237. gs


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Bifidalithus geminicatillus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 27-11-2022

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=10059 Go to Archive.is to create a permanent copy of this page - citation notes



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