Nannotax3 - Mesozoic - Watznaueria fasciata

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.

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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:

Tags	LITHS: placolith, elliptical, CA: grill, CSPH: equant, monomorphic, R-UNITS: R-prominent, DETAILS: ca_disjunct, rim-unicyclic,
Metrics	Lith 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 :: view :: open

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

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 :: view :: open