Micrantholithus obtusus


Classification: Mesozoic -> Braarudosphaerales -> Braarudosphaeraceae -> Micrantholithus -> Micrantholithus obtusus
Sister taxa: M. brevis, M. hoschulzii, M. lambertii, M. obtusus, M. quasihoschulzii, M. speetonensis, M. spinulentus, M. stellatus, M. sp.,

Distinguishing features: Micrantholithus with stellate outline due to shallow indentations in each segment.


Taxonomy:

Citation: Micrantholithus obtusus Stradner, 1963
Rank: Species

Farinacci & Howe catalog pages: Micrantholithus obtusus * , ,

Distinguishing features: Micrantholithus with stellate outline due to shallow indentations in each segment.

Geological Range:
Last occurrence (top): within NC7a subzone (122.25-123.88Ma, top in Aptian stage). Data source: Bown et al. 1998
First occurrence (base): within Berriasian Stage (139.39-145.01Ma, base in Berriasian 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: Micrantholithus obtusus, synonyms included - Micrantholithus obscurus; Micrantholithus obtusus; space-time plot :: Samples map :: Parent: Micrantholithus

    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

    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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    Micrantholithus obtusus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 24-7-2019

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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=10659 Go to Archive.is to create a permanent copy of this page - citation notes



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