Bibreviconus atlanticus


Classification: Mesozoic -> Watznaueriales -> Watznaueriaceae -> Bibreviconus -> Bibreviconus atlanticus
Sister taxa: B. atlanticus, B. sp.,

Distinguishing features: High, cylindrical morphology with a peg-like distal cycle; possibly the isolated central part of Cyclagelosphaera deflandrei specimens which have lost the shields.


Taxonomy:

Citation: Bibreviconus atlanticus Rahman & Roth, 1991
Rank: Species

Farinacci & Howe catalog pages: Bibreviconus atlanticus * , ,

Distinguishing features: High, cylindrical morphology with a peg-like distal cycle; possibly the isolated central part of Cyclagelosphaera deflandrei specimens which have lost the shields.

Geological Range:
Last occurrence (top): within Tithonian Stage (145.01-152.06Ma, top in Tithonian stage). Data source: Bown & Cooper 1998
First occurrence (base): within Tithonian Stage (145.01-152.06Ma, base in Tithonian stage). Data source: Bown & Cooper 1998

Plot of occurrence data:

  • (NB There is no histogram as there are no occurrence records for the taxon in the Neptune database) Parent: Bibreviconus

    References:

    Bown, P. R. & Cooper, M. K. E. (1998). Jurassic. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series. 34-85. gs

    Rahman, A. & Roth, P. H. (1991). Upper Jurassic calcareous nannofossils from the DSDP Site 534 in the Blake Bahama Basin, western North Atlantic. Eclogae Geologicae Helvetiae. 84: 765-789. gs


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    Bibreviconus atlanticus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 22-7-2019

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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=10056 Go to Archive.is to create a permanent copy of this page - citation notes



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