Calculites ovalis


Classification: Mesozoic -> Holococcoliths -> Common genera -> Calculites -> Calculites ovalis
Sister taxa: C. additus, C. anfractus, C. axosuturalis, C. cenomanicus, C. cyclops, C. favosus, C. juliae, C. maghredaswampensis, C. obscurus, C. ovalis, C. paulus, C. percernis, C. proscissus, C. rosalyniae, C. turonicus, C. sarstedtensis, C. suturus, C. sp.,

Distinguishing features: Calculites with four blocks divided along near axial sutures.


Taxonomy:

Citation: Calculites ovalis (Stradner, 1963) Prins & Sissingh in Sissingh, 1977
Rank: Species
Basionym: Tetralithus ovalis Stradner, 1963
Synonyms: Phanulithus ovalis

Farinacci & Howe catalog pages: Tetralithus ovalis * , ,

Distinguishing features: Calculites with four blocks divided along near axial sutures.

Geological Range:
Last occurrence (top): within Maastrichtian Stage (66.04-72.05Ma, top in Maastrichtian stage). Data source: Burnett 1998
First occurrence (base): within Coniacian Stage (86.26-89.77Ma, base in Coniacian 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: Calculites ovalis, synonyms included - Calculites ovalis; Phanulithus ovalis; Tetralithus ovalis; space-time plot :: Samples map :: Parent: Calculites

    References:

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

    Sissingh, W. (1977). Biostratigraphy of Cretaceous calcareous nannoplankton. Geologie en Mijnbouw. 65(1): 37-65. gs

    Stradner, H. (1963). New contributions to Mesozoic stratigraphy by means of nannofossils. Proceedings of the Sixth World Petroleum Congress. Section 1 Paper 4: 167-183. gs


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    Calculites ovalis 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=10173 Go to Archive.is to create a permanent copy of this page - citation notes



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