Gaarderella granulifera


Classification: Mesozoic -> Podorhabdales -> Biscutaceae -> Gaarderella -> Gaarderella granulifera
Sister taxa: G. granulifera, G. sp.,

Distinguishing features: Large placolith with broad shields and wide central area spanned by a granular central-area plate.


Taxonomy:

Citation: Gaarderella granulifera Black, 1973
Rank: Species

Farinacci & Howe catalog pages: Gaarderella granulifera *

Distinguishing features: Large placolith with broad shields and wide central area spanned by a granular central-area plate.


Morphology remarks: The nature of the rim is uncertain because the type images are all proximal views, but they appear to by Sollasites-like. The use of the name for LM images is rather variable. Rarely reported.

Geological Range:
Last occurrence (top): within Albian Stage (100.50-112.95Ma, top in Albian stage). Data source: Bown et al. 1998
First occurrence (base): within Albian Stage (100.50-112.95Ma, base in Albian stage). Data source: Bown et al. 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: Gaarderella granulifera, synonyms included - Gaarderella granulifera;
  • space-time plot :: Samples map :: Parent: Gaarderella

    References:

    Black, M. (1973). British Lower Cretaceous Coccoliths. I-Gault Clay (Part 2). Palaeontographical Society Monograph. 127: 49-112. gs

    Bown, P. R. (2001). Calcareous nannofossils of the Gault, Upper Greensand and Glauconitic Marl (Middle Albian-Lower Cenomanian) from the BGS Selborne boreholes, Hampshire. Proceedings of the Geologists' Association. 112: 223-236. gs

    Bown, P. R., Rutledge, D. C., Crux, J. A. & Gallagher, L. T. (1998). Early Cretaceous. In, Bown, P. R. (ed.) Calcareous Nannofossil Biostratigraphy. British Micropalaeontological Society Publication Series. 86-131. gs

    Jeremiah, J. (1996). A proposed Albian to Lower Cenomanian nannofossil biozonation for England and the North Sea Basin. Journal of Micropalaeontology. 15(97-129): -. 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


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    Gaarderella granulifera compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 18-10-2019

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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=10455 Go to Archive.is to create a permanent copy of this page - citation notes



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