Watznaueria okadai


Classification: ntax_mesozoic -> Watznaueriales -> Watznaueriaceae -> Watznaueria -> Watznaueria okadai
Sister taxa: W. barnesiae, W. bayackii, W. fossacincta, W. manivitiae, W. ovata ⟩⟨ W. britannica, W. reinhardtii ⟩⟨ W. biporta, W. cynthae ⟩⟨ W. contracta, W. okadai, W. quadriradiata ⟩⟨ W. fasciata, W. rawsonii, C. baticlypeata, W. sp.

Distinguishing features: Watznaueria species with sub-axial cross in the central area, long axis crossbar sigmoidal.


Taxonomy:

Citation: Watznaueria okadai Fernando 2014
Rank: Species

Farinacci & Howe catalog pages: W. okadai *

Distinguishing features: Watznaueria species with sub-axial cross in the central area, long axis crossbar sigmoidal.


Morphology: Similar to W. quadriradiata but with asymmetric central cross and earlier occurrence (Early Aptian vs. Santonian to Maastrichtian)

Search data:
TagsLITHS: placolith, elliptical, CA: cross-axial, ca_disjunct, vacant,
CSPH: equant, monomorphic, CROSS-POLARS: rim-unicyclic, R-prominent,
MetricsLith size: 6->8µm;
Data source notes: holotype +/- 1 µm
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within NC7A subzone (122.25-123.88Ma, top in Aptian stage). Data source: Fernando 2014 (type description)
First occurrence (base): within NC6A subzone (125.95-126.40Ma, base in Barremian stage). Data source: Fernando 2014 (type description)

Plot of occurrence data:

References:

Fernando, A. G. S. (2014). Taxonomic note: Watznaueria okadai, a newspecies of calcareous nannofossil from the Vocontian Basin, southeastern France. Journal of Nannoplankton Research. 33(1): 47-48. gs V O


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Watznaueria okadai compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 28-1-2021

Taxon Search:
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Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=11308 Go to Archive.is to create a permanent copy of this page - citation notes



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