Micrantholithus excelsus


Classification: Coccolithophores -> Braarudosphaerales -> Braarudosphaeraceae -> Micrantholithus -> Micrantholithus excelsus
Sister taxa: M. angulosus, M. astrum, M. attenuatus, M. bramlettei, M. breviradiatus, M. bulbosus, M. crenulatus, M. disculus, M. entaster, M. excelsus, M. flos, M. hebecuspis, M. minimus, M. mirabilis, M. pinguis, M. tinus, M. vesper, M. sp.,

Taxonomy:

Citation: Micrantholithus excelsus Bown, 2005
Rank: Species

Distinguishing features: Large, elevated Micrantholithus with deeply indented sides and gracile, long rays. The height of the pentalith results in a ragged LM appearance.

Farinacci & Howe catalog pages: Micrantholithus excelsus *

Search data:
TagsLITHS: nannolith-radiate, star-shaped, RIM: free-rays-long,
CSPH: not known, T-UNITS: all,
MetricsLith size: 9->18┬Ám; Segments: 5->5; Liths per sphere: 12->12
Sources: lith size (diameter) from OD; lith numbers assumed from geometry
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within NP23 zone (29.62-32.02Ma, top in Rupelian stage). Data source: Bown 2005
First occurrence (base): within NP11 zone (53.70-54.17Ma, base in Ypresian stage). Data source: Bown 2005

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. (2005d). Palaeogene calcareous nannofossils from the Kilwa and Lindi areas of coastal Tanzania (Tanzania Drilling Project 2003-4). Journal of Nannoplankton Research. 27(1): 21-95. gs

    Dunkley Jones, T., Bown, P. R. & Pearson, P. (2009). Exceptionally well preserved upper Eocene to lower Oligocene calcareous nannofossils (Prymnesiophycidae) from the Pande Formation (Kilwa Group), Tanzania. Journal of Systematic Palaeontology. 7(4): 359-411. gs


    nannotaxlogo400px

    Micrantholithus excelsus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 17-10-2019

    Taxon Search:
    Advanced Search

    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=865 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