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 0-800Ma)
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): in lower part of Maastrichtian Stage (36% up, 69.9Ma, in Maastrichtian stage). Data source: Total of range of species in this database
First occurrence (base): at base of Santonian Stage (0% up, 86.3Ma, in Santonian 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. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series. 132-199. gs

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 compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 18-9-2019

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



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