Watznaueria bayackii


Classification: Mesozoic -> Watznaueriales -> Watznaueriaceae -> Watznaueria -> Watznaueria bayackii
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-like in appearance but appear flat and have relatively large, visible rim elements.


Taxonomy:

Citation: Watznaueria bayackii Worsley, 1971
Rank: Species

Farinacci & Howe catalog pages: Watznaueria bayacki *

Distinguishing features: Watznaueria-like in appearance but appear flat and have relatively large, visible rim elements.


Morphology remarks: May represent disaggregated, isolated shields of Watznaueria barnesiae.

Search data:
TagsLITHS: placolith, elliptical, CA: closed,
CSPH: equant, monomorphic, R-UNITS: R-prominent, DETAILS: ca_conjunct, rim-unicyclic,
MetricsLith size: 5->8µm;
Sources: guesstimate/medium-size coccolith
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within Hauterivian Stage (130.77-133.88Ma, top in Hauterivian stage). Data source: Original description
First occurrence (base): within Portlandian W. Europe-British Stage (144.10-147.93Ma, base in Tithonian stage). Data source: Original description

Plot of occurrence data:

  • Histogram - Neptune occurrence data from DSDP and ODP proceedings. Pale shading <50 samples in time bin. Interpret with caution & read these notes
  • Note to users in China - the diagram may not plot unless you use a VPN since I use google services on the website. If this is a problem please contact me 谢谢.
  • Taxon plotted: Watznaueria bayackii, synonyms included - Watznaueria bayackii;
  • space-time plot :: Samples map :: Parent: Watznaueria

    References:

    Worsley, T. R. (1971). Calcareous nannofossil zonation of Upper Jurassic and Lower Cretaceous sediments from the Western Atlantic. In, Farinacci, A. (ed.) Proceedings of the Second Planktonic Conference Roma 1970. Edizioni Tecnoscienza, Rome 2: 1301-1321. gs :: ::

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    Watznaueria bayackii compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 6-7-2020

    Taxon Search:
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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=11300 Go to Archive.is to create a permanent copy of this page - citation notes
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