Bifidalithus


Classification: Mesozoic -> Holococcoliths -> Rarer genera -> Bifidalithus
Sister taxa: Bifidalithus, Bilapillus, Multipartis, Munarinus, Octolithus, Okkolithus, Ottavianus, Pharus, Ramsaya, Russellia, Saepiovirgata, Acuturris, Anfractus, Duocameratus, Lacunolithus-Bown, Metadoga, Nicholasia, Paulpearsonia, Petrobrasiella, Pseudoconus, Semihololithus, Stereorhabdus, Tanzanella, Thecatus, unidentified holococcoliths,

Distinguishing features: Holococcoliths formed from two blocks divided by a transverse suture.


Daughter taxa: (blue => in age window 0-300Ma)
Narrow rim around edge of blocks, no pore
Pore on each block, no rim
Specimens not identified to species level

Taxonomy:

Citation: Bifidalithus Varol, 1991
Rank: Genus
Type species: Bifidalithus geminicatillus Varol, 1991

Farinacci & Howe catalog pages: Bifidalithus *

Distinguishing features: Holococcoliths formed from two blocks divided by a transverse suture.

Geological Range:
Last occurrence (top): within Maastrichtian Stage (66.04-72.05Ma, top in Maastrichtian stage). Data source: Total of range of species in this database
First occurrence (base): within Campanian Stage (72.05-83.64Ma, base in Campanian stage). Data source: Total of range of species in this database

Plot of occurrence data:

References:

Burnett, J.A., (1998). Upper Cretaceous. In: Bown, P.R. (Editor), Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publications Series. Chapman & Hall, London, pp. 132-199.

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


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Bifidalithus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 16-11-2018

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Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=10058Go to Archive.is to create a permanent copy of this page - citation notes



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