Nannotax3 - ntax_mesozoic - Trapezopentus sarmatus

Trapezopentus sarmatus


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

Distinguishing features:
Parent taxon (Trapezopentus): Pentalith constructed of overlapping trapezoidal elements surrounding a large central opening.
This taxon: Pentalith constructed of overlapping trapezoidal elements surrounding a large central opening.


Taxonomy:

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

Farinacci & Howe catalog pages: T. sarmatus *

Distinguishing features:
Parent taxon (Trapezopentus): Pentalith constructed of overlapping trapezoidal elements surrounding a large central opening.
This taxon: Pentalith constructed of overlapping trapezoidal elements surrounding a large central opening.

Search data:
TagsLITHS: nannolith-radiate, pentagonal, CA: vacant, closed, CROSS-POLARS: T-prominent,
MetricsLith size: 8->10µm; Segments: 5->5;
Data source notes: 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:

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 V O


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Trapezopentus sarmatus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 22-1-2022

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



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