Trapezopentus sarmatus


Classification: Mesozoic -> Braarudosphaerales -> Braarudosphaeraceae -> Trapezopentus -> Trapezopentus sarmatus
Sister taxa: T. sarmatus, T. sp.,

Distinguishing features: Pentalith constructed of overlapping trapezoidal elements surrounding a large central opening.


Taxonomy:

Citation: Trapezopentus sarmatus Wind & Cepek, 1979
Rank: Species

Farinacci & Howe catalog pages: Trapezopentus sarmatus *

Distinguishing features: Pentalith constructed of overlapping trapezoidal elements surrounding a large central opening.

Search data:
TagsLITHS: nannolith-radiate, pentagonal, CA: vacant, closed, T-UNITS: T-prominent,
MetricsLith size: 8->10┬Ám; Segments: 5->5;
Sources: original description
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within Late Valanginian Substage (133.88-136.41Ma, top in Valanginian stage). Data source: Bown et al. 1998
First occurrence (base): within Late Valanginian Substage (133.88-136.41Ma, base in Valanginian stage). Data source: Bown et al. 1998

Plot of occurrence data:

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

    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 :: ::

    Wind, F. H. & Cepek, P. (1979). Lower Cretaceous calcareous nannoplankton from DSDP Hole 397A (northwest African Margin). Initial Reports of the Deep Sea Drilling Project. 47A: 221-235. gs :: view :: open


    nannotaxlogo400px

    Trapezopentus sarmatus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 11-8-2020

    Taxon Search:
    Advanced Search

    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=11247 Go to Archive.is to create a permanent copy of this page - citation notes



    Comments (0)

    No comments yet on this page. Please do add comments if you spot any problems, or have information to share

    Add Comment

    * Required information
    1000
    Captcha Image
    Powered by Commentics