Trapezopentus


Classification: Mesozoic -> Braarudosphaerales -> Braarudosphaeraceae -> Trapezopentus
Sister taxa: Braarudosphaera, Bukryaster, Hexalithus, Micrantholithus, Trapezopentus,

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


Daughter taxa: (blue => in age window 0-300Ma)
Pentalith constructed of overlapping trapezoidal elements surrounding a large central opening.
Specimens not identified to species level

Taxonomy:

Citation: Trapezopentus Wind & Cepek, 1979
Rank: Genus

Farinacci & Howe catalog pages: Trapezopentus *

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

Geological Range:
Last occurrence (top): within Valanginian Stage (133.88-139.39Ma, top in Valanginian stage). Data source: Total of range of species in this database
First occurrence (base): within Valanginian Stage (133.88-139.39Ma, base in Valanginian stage). Data source: Total of range of species in this database

Plot of occurrence data:

References:

Bown, P.R.; Rutledge, D.C.; Crux, J.A. & Gallagher, L.T., (1998). Early Cretaceous. In: Bown, P.R. (Editor), Calcareous nannofossil biostratigraphy. British Micropalaeontological Society Publication Series. Chapman & Hall, pp. 86-131.

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.


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Trapezopentus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 12-11-2018

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Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=11246Go to Archive.is to create a permanent copy of this page - citation notes



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