Braarudosphaera perversus


Classification: ntax_cenozoic -> Braarudosphaerales -> Braarudosphaeraceae -> Braarudosphaera -> Braarudosphaera perversus
Sister taxa: B. bigelowii, B. insecta, B. magnei, B. pentagonica, B. perampla, B. perversus, B. sequela, B. stylifera, B. sp.

Taxonomy:

Citation: Braarudosphaera perversus Sullivan 1965
Rank: Species

Distinguishing features: Braarudosphaera with ridge along the longer edge of each segment, giving rotated stellate appearance.

Farinacci & Howe catalog pages: B. perversus *

Search data:
TagsLITHS: nannolith-radiate, pentagonal, CROSS-POLARS: T-prominent,
MetricsLith size: 12->18µm; Segments: 5->5; Coccosphere size: 24->36µm; Liths per sphere: 12->12
Data source notes: lith size (diameter) from OD; lith numbers assumed from geometry; csph size calculated from lith size
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within NP12 zone (50.50-53.70Ma, top in Ypresian stage). Data source: original publication - recorded as from Penutian Stage in California which roughly corresponds to nannofossil stage NP12 according to GeoWhen database
First occurrence (base): within NP12 zone (50.50-53.70Ma, base in Ypresian stage). Data source: original publication - recorded as from Penutian Stage in California which roughly corresponds to nannofossil stage NP12 according to GeoWhen database

Plot of occurrence data:

References:

Sullivan, F. R. (1965). Lower Tertiary nannoplankton from the California Coast Ranges. II. Eocene. University of California Publications in Geological Sciences. 53: 1-74. gs


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Braarudosphaera perversus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 26-2-2021

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=151 Go to Archive.is to create a permanent copy of this page - citation notes



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