Uniplanarius sissinghii


Classification: Mesozoic -> Braarudosphaerales -> Polycyclolithaceae -> Uniplanarius -> Uniplanarius sissinghii
Sister taxa: U. clarkei, U. gothicus, U. sissinghii, U. trifidus, U. sp.,

Distinguishing features: Uniplanarius with four narrow rays with relatively long free length.


Taxonomy:

Citation: Uniplanarius sissinghii(Perch-Nielsen, 1986) Farhan 1987
Rank: Species
Basionym: Quadrum sissinghii Perch-Nielsen, 1986
Notes & discussion: Varol (1992) considered U. sissinghii to be a synonym of U. gothicus

Farinacci & Howe catalog pages: Quadrum sissinghii * , ,

Distinguishing features: Uniplanarius with four narrow rays with relatively long free length.


Evolution & Phylogeny: Farhan (1986) argued that U. sissinghii evolved from Lithastrinus quadricuspis

Geological Range:
Last occurrence (top): within Early Maastrichtian Substage (69.91-72.05Ma, top in Maastrichtian stage). Data source: Burnett 1998
First occurrence (base): at base of UC15c subzone (0% up, 77.6Ma, in Campanian stage). Data source: Burnett 1998 (subzonal marker)

Plot of occurrence data:

  • Histogram - Neptune occurrence data from DSDP and ODP proceedings. Pale shading <50 samples in time bin. Interpret with caution & read these notes
  • Note to users in China - the diagram may not plot unless you use a VPN since I use google services on the website. If this is a problem please contact me 谢谢.
  • Taxon plotted: Uniplanarius sissinghii, synonyms included - Quadrum sissinghii; Uniplanarius sissinghii; space-time plot :: Samples map :: Parent: Uniplanarius

    References:

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

    Farhan, A. (1987). Evolutionary Trend of the Genus Lithastrinus to the Genus Uniplanarius. Abhandlungen der Geologischen Bundesanstalt. 39: 57-65. gs

    Perch-Nielsen, K. (1986). New Mesozoic and Paleogene calcareous nannofossils. Eclogae Geologicae Helvetiae. 79(3): 835-847. gs


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    Uniplanarius sissinghii compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 17-7-2019

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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=11289 Go to Archive.is to create a permanent copy of this page - citation notes



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