Micrantholithus speetonensis


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

Distinguishing features: Micrantholithus with crenulated outline due to two indentations in each segment.


Taxonomy:

Citation: Micrantholithus speetonensis Perch-Nielsen, 1979
Rank: Species

Farinacci & Howe catalog pages: Micrantholithus speetonensis * , ,

Distinguishing features: Micrantholithus with crenulated outline due to two indentations in each segment.

Geological Range:
Last occurrence (top): at top of BC4 zone (100% up, 135.7Ma, in Valanginian stage). Data source: Bown et al. 1998 - zonal marker
First occurrence (base): at base of BC4 zone (0% up, 138.3Ma, in Valanginian stage). Data source: Bown et al. 1998 - zonal marker

Plot of occurrence data:

  • (NB There is no histogram as there are no occurrence records for the taxon in the Neptune database) 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

    Perch-Nielsen, K. (1979b). Calcareous nannofossils from the Cretaceous between the North Sea and the Mediterranean. Aspekte der Kreide Europas, IUGS Series A. 6: 223-272. gs


    nannotaxlogo400px

    Micrantholithus speetonensis compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 22-7-2019

    Taxon Search:
    Advanced Search

    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=10663 Go to Archive.is to create a permanent copy of this page - citation notes



    Comments (0)

    No comments yet. Be the first!

    Add Comment

    * Required information
    1000
    Captcha Image
    Powered by Commentics