Watznaueria fasciata


Classification: Mesozoic -> Watznaueriales -> Watznaueriaceae -> Watznaueria -> Watznaueria fasciata
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: Small (3-5 µm) Watznaueria with relatively wide central-area spanned by around 5 parallel transverse bars.


Taxonomy:

Citation: Watznaueria fasciata Wind & Cepek, 1979
Rank: Species
Synonyms: Ellipsagellosphaera fasciata (Wind & Cepek, 1979) Perch-Nielsen 1984

Farinacci & Howe catalog pages: Watznaueria fasciata *

Distinguishing features: Small (3-5 µm) Watznaueria with relatively wide central-area spanned by around 5 parallel transverse bars.


Morphology remarks: Difficult to definitively identify in LM because the bars are imperceptible. Watznaueria coccoliths with open central areas have been named W. ovata, but these may include W. fasciata that have lost their central area bars or protococcoliths of other Watznaueria species.

Search data:
TagsLITHS: placolith, elliptical, CA: grill,
CSPH: equant, monomorphic, R-UNITS: R-prominent, DETAILS: ca_disjunct, rim-unicyclic,
MetricsLith size: 3->5µm;
Sources: original description & illustrated specimens
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within Aptian Stage (112.95-126.30Ma, top in Aptian stage). Data source: Bown et al. 1998
First occurrence (base): within Berriasian Stage (139.39-145.01Ma, base in Berriasian stage). Data source: Bown et al. 1998

Plot of occurrence data:

  • (NB There is no histogram as there are no occurrence records for the taxon in the Neptune database) Parent: Watznaueria

    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

    Covington, J. M. & Wise, S. W. (1987). Calcareous nannofossil biostratigraphy of a Lower Cretaceous deep-sea fan complex: Deep Sea Drilling Project Leg 93 Site 603, lower continental rise off Cape Hatteras. Initial Reports of the Deep Sea Drilling Project. 93: 617-660. gs

    Perch-Nielsen, K. (1984). Validation of new combinations. INA Newsletter. 6(1): 42-46. 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

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    Watznaueria fasciata compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 29-3-2020

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    Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=11305 Go to Archive.is to create a permanent copy of this page - citation notes
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