Biscutum gaultensis


Classification: Mesozoic -> Podorhabdales -> Biscutaceae -> Biscutum -> Biscutum gaultensis
Sister taxa: B. arrogans, B. asymmetricum, B. boletum, B. constans, B. coronum, B. davyi, B. dekaenelii, B. depravatus, B. dissimilis, B. dorsetensis, B. dubium, B. ellipticum, B. erismatum, B. gaultensis, B. grande, B. hattneri, B. intermedium, B. magnum, B. melaniae, B. notaculum, B. planum, B. profundum, B. thurowii, B. virginica, B. zulloii, B. sp.,


Taxonomy:

Citation: Biscutum gaultensis (Mutterlose, 1992) Bown in Kennedy et al., 2000
Rank: Species
Basionym: Seribiscutum gaultensis Mutterlose, 1992

Farinacci & Howe catalog pages: Seribiscutum gaultensis *


Morphology remarks: From the original description - "The central area is nearly filled by at least four platelike elements that are interrupted in the center by a pore. The central elements are discernible under the light microscope and form a distinctive extinct ion pattern"

Geological Range:
Last occurrence (top): in mid part of UC5a subzone (50% up, 94.3Ma, in Cenomanian stage). Data source: Burnett 1998, fig. 6.2
First occurrence (base): within Aptian Stage (112.95-126.30Ma, base in Aptian stage). Data source: Burnett 1998

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: Biscutum gaultensis, synonyms included - Biscutum gaultensis; Seribiscutum gaultensis;
  • space-time plot :: Samples map :: Parent: Biscutum

    References:

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

    Gale, A. S., Kennedy, W. J., Burnett, J. A., Caron, M. & Kidd, B. E. (1996). The Late Albian to Early Cenomanian succession at Mont Risou, near Rosans (Drôme, SE France): an integrated study (ammonites, inoceramids, planktonic foraminifera, nannofossils, oxygen and carbon isotopes). Cretaceous Research. 17: 515-606. gs

    Hardas, P. & Mutterlose, J. (2008). Calcareous nannofossil assemblages of Oceanic Anoxic Event 2 in the equatorial Atlantic: Evidence of an eutrophication event. Marine Micropaleontology. 66: 52-69. gs

    Kennedy, W. J. et al. (2000). Integrated stratigraphy across the Aptian-Albian boundary in the Marnes Bleues, at the Col de Pre _-Guittard, Arnayon (Drome), and at Tartonne (Alpes-de-Haute-Provence), France: a candidate Global Boundary Stratotype Section and Boundary Point for the base of the Albian Stage. Cretaceous Research. 21: 591-720. gs

    Mutterlose, J. (1992b). Lower Cretaceous nannofossil biostratigraphy off northwestern Australia (Leg 123). Proceedings of the Ocean Drilling Program. Scientific Results. 123: 343-368. gs

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    Biscutum gaultensis compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 16-10-2019

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