Percivalia fenestrata


Classification: Mesozoic -> Eiffellithales -> Rhagodiscaceae -> Percivalia -> Percivalia fenestrata
Sister taxa: P. arata, P. bullata, P. dunkleyjonesii, P. fenestrata, P. hauxtonensis, P. howardii, P. imperfossa, P. pearsonii, P. pontilitha, P. porosa, P. sp.,

Distinguishing features: Loxolith coccoliths with narrow outer cycle and wide central area filled with a granular plate. The plate is distinctly smooth and birefringent in XPL and crossed by curving extinction lines.


Taxonomy:

Citation: Percivalia fenestrata (Worsley, 1971) Wise, 1983
Rank: Species
Basionym: Arkhangelskiella? fenestrata Worsley, 1971
Synonyms: Reinhardtites fenestratus (Worsley, 1971) Thierstein, in Roth & Thierstein 1972

Farinacci & Howe catalog pages: Arkhangelskiella fenestrata * ,

Distinguishing features: Loxolith coccoliths with narrow outer cycle and wide central area filled with a granular plate. The plate is distinctly smooth and birefringent in XPL and crossed by curving extinction lines.

Geological Range:
Last occurrence (top): within Campanian Stage (72.05-83.64Ma, top in Campanian stage). Data source: Bown et al. 1998
First occurrence (base): at base of NK2b (0% up, 0Ma, in stage). Data source: Bown et al. 1998, fig 5.1

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: Percivalia fenestrata, synonyms included - Percivalia fenestrata; Reinhardtites fenestratus; space-time plot :: Samples map :: Parent: Percivalia

    References:

    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

    Roth, P. H. & Thierstein, H. R. (1972). Calcareous nannoplankton: Leg 14 of the Deep Sea Drilling Project. Initial Reports of the Deep Sea Drilling Project. 12: 546-559. gs

    Wise, S. W. (1983). Mesozoic and Cenozoic calcareous nannofossils recovered by DSDP Leg 71 in the Falkland Plateau region, Southwest Atlantic Ocean. Initial Reports of the Deep Sea Drilling Project. 71: 481-550. gs

    Worsley, T. R. (1971). Calcareous nannofossil zonation of Upper Jurassic and Lower Cretaceous sediments from the Western Atlantic. In, Farinacci, A. (ed.) Proceedings of the Second Planktonic Conference Roma 1971. Edizioni Tecnoscienza, Rome 2: 1301-1321. gs


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    Percivalia fenestrata 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=10874 Go to Archive.is to create a permanent copy of this page - citation notes



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